"Wake Me Up" is a song recorded by British girl group Girls Aloud from their second studio album, What Will the Neighbours Say? (2004). It was released by Polydor Records on 21 February 2005, as the fourth and final single from the album. The song had been initially considered as the lead single, however, it was deemed to sound too harsh and the record company did not want to take the risk. The track was written by Miranda Cooper, Brian Higgins, Tim Powell, Shawn Lee, Lisa Cowling, Paul Woods and Yusra Maru'e. "Wake Me Up" is a pop rock song composed of a "garage rock guitar riff". It received mixed reviews from music critics. While some described it as predictable, others wrote that it appeared to be an attempt to recapture the sound of some of their previous release. Alex Kapranos, the lead singer of indie rock band Franz Ferdinand, said "Wake Me Up" inspired the band to work with producer Brian Higgins.

The Out of Control Tour was the fifth concert tour by British-Irish girl group Girls Aloud. It supported their fifth studio album Out of Control. Initially, just ten dates in bigger arenas were announced in November 2008. Due to demand, more dates were added. Girls Aloud performed thirty-two dates across the United Kingdom and Ireland. The tour commenced on 24 April 2009 at the Manchester Evening News Arena, with the final show on 6 June 2009 in Newcastle's Metro Radio Arena.