"Tonight" is a 1993 single by British hard rock band Def Leppard from their 1992 multi-platinum album Adrenalize. It was originally recorded on 5 May 1988 during a break in the Hysteria World Tour as a possible B-side to one of the singles for their fourth album Hysteria but was shelved and re-recorded during the Adrenalize sessions. "Tonight" is the sixth international single from the Adrenalize album. It was the fifth single in both the USA and UK.