"Doing It" is a song by English singer Charli XCX from her second studio album, Sucker (2014). An alternative version of the song featuring singer Rita Ora was released on 3 February 2015 as the album's third single. The single peaked at number eight on the UK Singles Chart. "Doing It" was named "Best New Track" the week of its release by Pitchfork. Charli is seen performing a snippet of the song in a commercial for Pepsi's "Out of the Blue" music campaign, which aired during the 57th Annual Grammy Awards, on 8 February 2015.