"Tragedy" is a song recorded by the Bee Gees, included on their 1979 album Spirits Having Flown. The single reached number one in the UK in February 1979 and repeated the feat the following month on the U.S. Billboard Hot 100. Though not originally in Saturday Night Fever, it has subsequently been added to the musical score of the West End version of the movie-musical.

The song knocked "I Will Survive" by Gloria Gaynor off the top spot in the U.S. for two weeks before that song again returned to number one for an additional week.

In 1979, NBC aired The Bee Gees Specialwhich showed how the sound effect for the explosion was created. Barry cupped his hands over a microphone and made an exploding sound. Several of these sounds were then mixed together creating one large boom heard on the record.

In 1998, Steps covered "Tragedy", releasing it as a double A-side with "Heartbeat". It debuted at number two on the UK Singles Chart before climbing to the top spot, achieving platinum status. A dance step of putting both hands parallel to the sides of the head became the trademark move of the British group. "Tragedy" has sold more copies than all three previous Steps singles combined. It spent eighteen weeks in the Top 20 and thirty weeks on the chart in total.