10. Selena Gomez - 'Come and Get It'
Why we like it: This is really Selena Gomez's first big, post-Justin bow in the mainstream, firmly leaving her child actress work behind and owning a look and sound that is simple (and simply sultry).
Burn out factor: While the beat is infectious, the chorus wisps away like cotton candy: sweet for a while, then it's the only thing you remember, then you've got a tummy ache wish you ate something else.
Will we remember it 10 years from now? Nah nah nah nah