"Not Now John" is a song by the progressive rock band Pink Floyd, written by Roger Waters. It appears on the album The Final Cut (1983). The track is the only one on the album featuring the lead vocals of David Gilmour, found in the verses, with Roger Waters singing the refrains and interludes, and was the only single released from the album (discounting "When the Tigers Broke Free", a non-album single retroactively added to the album in 2004). It reached No. 30 in the UK Singles Chart.
