"Wow" was the second single to be released from Kate Bush's second album Lionheart.

The single is an edited version of "Wow", although it is not labelled as such. On all European "Wow" singles, the first 12 seconds of synthesizer chords have been removed. Brazil and Canada used the full-length LP version.

The song was released on 9 March 1979 and peaked at number 14 in the UK Singles Chart. "Wow" was a target for comedian Faith Brown who parodied it on her show. The song also appears on Bush's compilation hits album The Whole Story.

This song was featured in the 2002 PlayStation 2 videogame Grand Theft Auto: Vice City as part of the power ballads radio station Emotion 98.3.