The Tangled Up Tour was the fourth concert tour by English-Irish girl group Girls Aloud. It supported their fourth studio album Tangled Up. Tour dates were announced in November 2007. Girls Aloud performed twenty-four shows at arenas across the United Kingdom and Ireland, making this tour their third to reach arenas. The tour commenced in Belfast on 3 May 2008 and concluded in Birmingham on 4 June. Girls Aloud also performed eleven open-air concerts over the summer.

"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.