"I Don't Know What You Want but I Can't Give It Any More" is a song by English synth-pop duo Pet Shop Boys from their seventh studio album, Nightlife (1999). Released on 19 July 1999 as the album's lead single, it peaked at number 15 on the UK Singles Chart, number two on the US Hot Dance Club Play chart, and number 66 on the US Hot Singles Sales chart. The accompanying music video was directed by Pedro Romhanyl.