"Crazy for You" is a song by American recording artist Madonna, for the 1985 film Vision Quest. It was released on March 2, 1985 by Geffen Records, as the first single from the soundtrack album of the film. The song appears remixed on the 1990 greatest hits album The Immaculate Collectionand was re-released on February 24, 1991 by Sire Records to promote the album. It was also included on the ballads compilation Something to Remember(1995) and the greatest hits compilation Celebration(2009). Producers Jon Peters and Peter Guber, and music director Phil Ramone decided to use Madonna, after listening to her previous recordings. They employed John Bettis and Jon Lind to write the song. After reading the script of the film, Bettis and Lind wrote the song about the situation where the lead characters meet at a nightclub. Initial recording sessions did not impress Bettis and Lind, and they felt that "Crazy for You" would be dropped from the soundtrack. However, a new version was recorded which impressed them.

John "Jellybean" Benitez was the producer for the song, and it was a challenge for him, as previously he was associated with recording dance-pop songs only. Initially Warner Bros. Records did not want the song to be released as a single, since they believed that "Crazy for You" would take away the attention from Madonna's sophomore release Like a Virgin. In the end, Peters and Guber convinced Warner officials to green light the release of the single. "Crazy for You" ushered a new musical direction for Madonna, as previously she did not record any songs in the ballad genre. It features instrumentation from snare drums, harp, bass synthesizer and electric guitar. Lyrically the song talks about sexual desire between two lovers and consists of innuendos. It received positive reception from contemporary critics and scholars, and earned a Grammy Award nomination in 1986 for Best Female Pop Vocal Performance.

The song became Madonna's second number-one single on the U.S. Hot 100 as well as reaching the peak position in the charts of Australia and Canada. It also reached number-two in the charts of Ireland, New Zealand and the United Kingdom, where it was released twice, once in 1985 and again in 1991. Madonna has performed "Crazy for You" in two of her concert tours – The Virgin Tour in 1995 and the Re-Invention World Tour in 2004. The performances were included in the home video release of the tours. The song has been covered by a number of artists.

"Crazy for You" was written by John Bettis and Jon Lind. The ballad was released as the first single from the soundtrack of the 1985 film Vision Quest, a coming of age drama about a wrestler played by Matthew Modine. Producers Jon Peters and Peter Guber, and music director Phil Ramone was aware of the then unknown Madonna, who was just signed to Sire Records. Ramone took her for dinner at his house in Carolwood Records, where she played some of her music videos. Ramone and the other Warner executives present there, were impressed by Madonna's self-possession and fishnet-crucifix style. So they decided to test her voice in a New York studio. Peters was impressed with Madonna and assigned Joel Sill, an executive in charge of music at Warner Bros. Pictures, to handle the recording of the two songs for the film. Sill sent the script of the film to Bettis and Lind. After going through the script, Bettis wanted to write a song about the situation, where the main characters – a young boy and a girl boarding at a house – dance together at a nightclub. He elaborated,

"We were noodling around and 'Crazy for You' was something that Jon was singing over that section of the song. It was really descriptive of the scene in the film. [...] After that, I was out on vacation out in the desert and [Sill] called and said Phil Ramone was in love with the song and wanted to cut it on Madonna. [Laughing] 'Borderline' was out at that time and I said, 'Excuse me? This is for Madonna? Really? Can she sing a song like this?' Jon and I were surprised at the choice of artist at the time, if you want to know the truth."

After Sill let Bettis and Lind know that Madonna was singing the song, some time elapsed before either of them heard anything from Warner Bros. Records. In between, they went to one of the recording sessions and were not impressed with the process of recording the song. Bettis commented, "We went to one of the sessions, and to be honest, that particular session did not go all that well. [...] Jon and I were depressed about the way the song had come out. We heard nothing else about it and we were a little nervous that the song was going to be dropped from the picture." Bettis went to England to work on the 1985 fantasy film Legendwith music producer Jerry Goldsmith. It was there he received a call from Lind, who informed Bettis that a new version of "Crazy for You" was recorded and was made ready for a single release. An astounded Bettis went over to Lind's house, where he warmly received the new recorded version of the song, incorporating a different arrangement from the demo version. The arrangement was done by composer Rob Mounsey who rearranged the original track and added the background vocals. Bettis showed his gratitude to Mounsey saying "We owe a big debt of gratitude to [Mounsey]. He really made a hit record out of [the song]." Mounsey was introduced in the project by record producer John "Jellybean" Benitez who was producing "Crazy for You". Benitez was previously associated with producing dance-pop themed songs and it was the first time that he produced a ballad. In Fred Bronson's The Billboard Book of Number 1 Hits, Benitez commented,

"The song was recorded live. It was the first time that I produced a live session, as opposed to having synthesizers and drum machines do everything. [...] I was tense because I had never done a record like this. [...] Everything I did was totally on instinct. I tried to make the song stand on its own, but at the same time work in the two scenes in which it was used in the movie."

Benitez also noted that "Crazy for You" was an important recording for Madonna, as the song being a ballad, was openly accepted at adult contemporary radios. She had already charted with her singles "Like a Virgin" and "Material Girl", hence Madonna wanted to prove that she can sing in a different genre of music. However, Warner initially did not want the song to be released as a single, since the release of Vision Questcoincided with the release of Madonna's second studio album Like a Virginand releasing "Crazy for You" would have distracted attention from the album. Warner Bros. Records chief Mo Ostin went to Robert A. Daly, chairman of Warner, and requested him to pull out the Madonna tracks from the Vision Questsoundtrack. Daly summoned Peters and Guber to his office and informed them that they had to let-go of the Madonna tracks. Peters protested and shouted at Daly, resulting him escaping in fright and Warner allowing "Crazy for You" to be released as a single.

"Crazy for You" ushered in a new musical direction for Madonna, as she had never recorded ballad songs previous to this. The song is sophisticated compared to her previous singles. The introduction features a melody by a woodwind instrument and an electric guitar chord, sliding from one motif to the other. It features beats by a snare drum on the last beat of the bar, leading to the spacey quality of most of the verses. Other instrumentation comes from a harp, a bass synthesizer and a chattering single note guitar lick. The fuller rhythm of the song does not start, until the chorus is reached. The turn of the melody allows Madonna's voice to stretch further on the higher notes. "Crazy for You" is set in the time signature of common time, with a medium tempo of 104 beats per minute. It is set in the key of E major with Madonna's voice spanning between the high note of G to the low note of C. The song has a basic sequence of A–G ♯ –C ♯ m7–G/A – A/B as its chord progression. Unlike her previous singles, the chord sequence does not repeat itself and the chorus slowly unravels to the climax of the song. Lyrically, the song talks about extreme love for one another. It contains innuendos similar to The Crystals' 1963 song "Then He Kissed Me". According to scholar Dave Marsh, the lyrics talk about a state of frank sexual desire among two teenagers. He also said that the line "I'm crazy for you; Touch me once and you'll know it's true" was not ambiguous and it helped Madonna capitalize on such disambiguation.

Rikky Rooksby, author of The Complete Guide to the Music of Madonna, complimented the song calling it sophisticated. Alex Henderson of Allmusic felt that the other song on the Vision Questsoundtrack, titled "Gambler", should have been the more successful single. Stephen Thomas Erlewine from Allmusic called the song as one of her biggest hits. Biographer J. Randy Taraborrelli called the song "sassy" and commented that the song provided proof that Madonna was vocally capable of delivering a serious ballad. Author Andrew Morton believed that the song cemented Madonna as a talented and serious singer which "had been missing from her past recordings." Allen Metz and Carol Benson, authors of The Madonna Companion: Two Decades of Commentary, said that the song sounded like a "remake of sweet-sixteen Connie Francis tune, dripping with old-fashioned, hand-held romance" especially in the line "It's so brand new; I'm really crazy for you." Dave Marsh, author of The heart of rock & soul: the 1001 greatest singles ever made, felt that with the coda of the song, Madonna transformed her record into an adult love song. William McKeen, author of Rock and roll is here to stay: an anthology, felt that the song "offered an aggressive sexuality for women". Maria Raha, author of Cinderella's big score: women of the punk and indie underground, said that with the song, "Madonna brought a trunk full of trite lyrics on the long-standing tradition of pop music, love." "Crazy for You" was nominated for Best Female Pop Vocal Performance at 1986 Grammy Awards, but lost to Whitney Houston's "Saving All My Love for You". The song was ranked number 38 on VH1's "100 Greatest Love Songs", and during the special it was revealed that "Crazy for You" was recorded in one take. In 2003, Madonna fans were asked to vote for their Top 20 Madonna singles of all-time by magazine. "Crazy for You" was allocated the eleventh spot.

In the United States, "Crazy for You" became Madonna's second number-one single on the Hot 100. The song debuted on the chart at number fifty-four on the issue dated March 30, 1985. After six weeks, the song reached the top of the chart, replacing "We Are the World" by USA for Africa, and stayed at the position for one week. "Crazy for You" was the second number-one song for Bettis as a songwriter, after "Top of the World by The Carpenters (1973). With "Crazy for You", Bettis was in doubt whether the song would reach the top, after it was stuck at number two for three weeks, behind "We Are the World". Both he and Lind commented, "If you gotta lose to something, it as well be ['We Are the World']. Luckily enough, the final week of the upsurge of the record, we topped 'We Are the World', which lets you know how hot the song and how hot the artist was." "Crazy for You" was certified gold by the Recording Industry Association of America (RIAA) on July 16, 1985, for shipment of one million copies of the single across United States – the requirement for a gold single prior to 1989. The song reached number two on the Adult Contemporary Singles and eighty on the Hot Black Singles chart. In Canada, the song debuted at number seventy on the RPMissue dated March 16, 1985. On its eleventh week on the chart, the song reached the top position. It was present on the chart for twenty-five weeks and ranked seventh on the RPMYear-end chart for 1985.

The song reached number one in Australia and displaced another Madonna release, "Angel"/"Into the Groove", from the top spot on the Australian Kent Music Report chart, making Madonna one of only a handful of acts who have ever replaced themselves at the No.1 spot on the Australian singles chart. After the song was released in the United Kingdom on June 8, 1985, it debuted and peaked at two. In February 1991, the song was re-released and again reached a peak of two. "Crazy for You" was certified gold by the British Phonographic Industry (BPI) for shipment of 400,000 copies across United Kingdom. Such was Madonna's popularity that when Vision Questwas released in home video, it was re-named as Crazy for You, to cash in on her success. "Crazy for You" was also a number-two hit in Ireland and New Zealand. The song reached the top-twenty in Belgium, Europe, Italy, Japan, Netherlands, Sweden and Switzerland and top forty of Austria, France and Germany.

Madonna first performed "Crazy For You" on her 1985 The Virgin Tour. She wore a black top and long black skirt with her hair in knots and a crucifix attached in the back. After an energetic performance of "Over and Over", Madonna sat down on the steps and sang "Crazy for You". Paul Grein, music editor of Billboard, commented that "She was at her best on 'Crazy for You', making good use of a deeper, huskier vocal quality that mirror's the song's deeper lyrical approach. The performance was included in the VHS release Live – The Virgin Tourrecorded in Detroit, Michigan. In the Re-Invention World Tour of 2004, Madonna performed the song in the last segment of the show. She wore a Scottish kilt and a t-shirt which had different captions in different venues; usually it had the caption "Kabbalists Do It Better", however she also had "Brits Do It Better" and "Irish Do It Better" on the British and Irish stops of the tour, respectively. As Madonna finished singing "Papa Don't Preach", she went to the second stage and announced: "This next song I dedicate to all my fans who has been with me for all the twenty years," and started to sing the song. At the end of the performance, she threw her t-shirt to the audience. The performance was excluded from the album of the documentary on the tour titled I'm Going to Tell You a Secret, which was released in 2005.

Several Filipino acts have recorded remakes of "Crazy for You" including, Sponge Cola in 2004, Michael Cruz in 2005 and MYMP on their album New Horizon(2006). In 2007, Groove Armada recorded a cover with Alan Donohoe of art rock band The Rakes on vocals for the compilation Radio 1 Established in 1967. New Found Glory recorded a punk pop cover of the song with Max Bemis for their 2007 album From the Screen to Your Stereo Part II. A cover of the song by Lion of Panjshir was included on the 2007 Madonna tribute compilation Through the Wilderness. Melissa Totten did a Hi-NRG cover for her 2008 dance album, Forever Madonna. An instrumental version was played in the Full Houseepisode 13 Candleswhen Kimmy dares DJ to kiss Kevin at her party. It was also featured in the 2004 film 13 Going on 30, starring Jennifer Garner. Chris Griffin performed the song during the "Long John Peter" episode of Family Guy.