Help me with a Ricky Martin song...

Ok, I think it's new like this month, but it might be old... I know two parts of the lyrics..

...i just wanna be yours..
...what you did undo...

It's really hip-hop -ish, jumpy etc.. erm there's a rapper i think in it.. anyone?

"I DON'T CARE" by: Ricky Martin

just out 'i dont care' gd tune xxx