I knu there were gonna b Ciara haters on here who obviously ingorned the obvious. Yet again comparing voices on a song when really if they had an EAR for music they would recognize that Ciara's voice fits this song naturally, Mary's does not. Not that Mary can't sing, i wouldnt dare say that, but she kinda oversings to point to where all you can hear is her voice. With Ciara's version, the song & her voice match toe 2 toe. She's not over singing & the beat is not tuning her out. Ciara's version is way better... END OF STORY!!!!