"5 Colours in Her Hair" is the debut single by English pop rock band McFly. It was also the band's first UK number one. It stayed at the top for two weeks. The song was written by two of the band members, Tom Fletcher and Danny Jones, and Busted member James Bourne. The track is especially well known for its "Doo, Doo, Doo, Doo, Doo, Doo!" lyrics, played at the beginning and at the ending of the song. The CD also features a duet with Busted singing a cover of The Kinks song "Lola".