1. Sugababes vs. Girls Aloud: Walk This Way (2007)
http://www.youtube.com/watch?v=1Jvrjd8DI-c The only possible reason I can think of for this atrocity hitting the top spot is that it was a charity single, because it certainly isnt a great cover. In all honesty, its one of the worst. We can all support that it was for a good cause, but they completely butchered a decent song in the process. It will go down in history as not only one of the most forgettable number ones in history, but also the worst. Also, it was released against another Comic Relief single, The Proclaimers Im Gonna Be (500 Miles), with the addition of Peter Kay and Matt Lucas, whose sales were reportedly double that of Walk This Way. This, in conjunction with its relatively quick dismissal from the charts, reinforces the bad reception surrounding this collision of girl bands.