The idea of a Girls Aloud and Sugababes collaboration came from Comic Relief co-founder and trustee Richard Curtis. Several songs were possibilities, including Blur's "Girls & Boys" and Candi Staton's "You Got the Love", which was Girls Aloud member Nicola Roberts' idea and favourite choice. "Walk This Way" is notably the first Girls Aloud single to date not to feature production from Brian Higgins and Xenomania, who have also worked with Sugababes. Girls Aloud and Sugababes launched the charity appeal on January 31. Kimberley Walsh of Girls Aloud said, "It's a fantastic song and hopefully will raise tons of money for people living in really difficult situations here and in Africa."