She set the benchmark and everyone says the versions after were nowhere near as good, so take her out and who did it best?
Danyl Jonson:
Treyc Cohen:
Misha B:
... and for good measure, Stacey from X Factor USA:
I like Danyl's the most, it was nowhere near as bad as people made out at the time and its quite clear he's heard the original whilst the others haven't. But Stacey's is unreal