"Tonight" is a song by English hard rock band Def Leppard from their 1992 album, Adrenalize. It was originally recorded during a break in the Hysteria World Tour as a possible B-side to one of the singles from their fourth album, Hysteria. but was shelved and re-recorded during the Adrenalize sessions. "Tonight" is the sixth international single from Adrenalize and the fifth single in both the US and UK. In the US, the song reached number 13 on the Billboard Album Rock Tracks charts and number 62 on the Billboard Hot 100. It also peaked at number 34 on the UK Singles Chart.