I thought this was a good idea to do sometimes, not sure how many id be able to think of though lol
[ame="http://uk.youtube.com/watch?v=l_i1ijcbXSE"]YouTube - Rihanna - Take a Bow [with Lyrics] Official Video[/ame]
[ame="http://uk.youtube.com/watch?v=9EmuUt1hLB4"]YouTube - Leona Lewis - Take A Bow[/ame]
I vote Leona on this one!