A 30-second sample of "Discothèque" was leaked to the Internet on 26 October 1996. By 27 December, the entire track had been leaked, after which U2 moved up the release date. "Discothèque" debuted at #3 on the US Modern Rock Tracks chart, and hit #1 the following week. It was certified Gold by the RIAA on 7 April 1997. The song debuted on the Billboard Hot 100 at #10, but dropped off the charts after only four weeks in the Top 40. It was also the band's sixth (and last) top ten single in the US. It debuted at #1 on the UK singles chart, remaining on top for one week and spending a total of eleven weeks in the chart.
The song was remixed for U2's The Best of 1990-2000 greatest hits album, released in 2002. The new version features a longer intro and subtle use of the techno-sounding drum beat that figured prominently in the opening of the original track. The 'new' "Discotheque" was similar in sound to how U2 performed the song during the PopMart Tour in 1997 and 1998.