"Pump It Up" is a 1978 song by Elvis Costello. It originally appeared on Costello's second album This Year's Model, which was the first he recorded with the backing group the Attractions.

AllMusic critic Stephen Thomas Erlewine described "Pump It Up" as being "underscored with sexual menace". Costello frequently uses double entendres in his songs, and "Pump It Up" is a good example of this, with the phrase "pump it up" being used to refer both to turning up the volume on the music and to masturbation. The story in the song is about the narrator's sexual frustration at the hands of a femme fatale who's described in the lyrics as being "a bad girl" and "like a narcotic".

"Pump It Up" was written in reaction to the excesses of the Stiffs Live Tour.

In his 2015 autobiography Unfaithful Music and Disappearing Ink, Costello acknowledged that the song owed an inspiration to Bob Dylan: ' Pump It Up' obviously took more than a little bit from 'Subterranean Homesick Blues'. One night, many years later, Bob Dylan said to me: 'U2! How could they do that to you? How could they take your song like that?' It took me a moment to know what he was talking about, and a moment more to realise that he was putting me on. But then, U2's 'Get On Your Boots' was probably to 'Pump It Up' what 'Subterranean Homesick Blues' is to Chuck Berry's 'Too Much Monkey Business'.

The video features the band performing in an unfurnished, light-drenched, wholly white set, and uses simple split-screen quadrant image effects. It was directed by Paul Flattery for Jon Roseman Productions. Costello's leg movements become increasing disjointed.

The video for "(I Don't Want to Go to) Chelsea" was shot the same day in London, and all the musicians can be seen wearing the same clothes, although drummer Pete Thomas sports a plain grey jacket for Pump It Up. Bassist Bruce Thomas had cut his right hand on a bottle a few weeks previously and had needed eight stitches. His bandage can be seen clearly in both the videos.

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