What's this song - X Factor background - vaguest request ever

[groovygarden]

I heard a song on X Factor on Sat 29th. It was in the background a couple of times.

It's an RnB ish song. I can't make out the lyrics to google them, but a bit that keeps coming up sounds like "what it is" and another bit sounds like "and I really can't...". But it's quite fast and not v clear. People should enunciate properly when they sing.

It's by a female artist(s).

You can hear the intro to the song on ITV Player at 25:20 - http://www.itv.com/ITVPlayer/Video/default.htm l?ViewType=5&Filter=47178

I like the song, not loads, but I like it, and it's driving me mad!

[Aquariel]

It's "Work" by Kelly Rowland

https://www.youtube.com/watch?v=py_PavqqOao

[groovygarden]

Wow! Thank you. That's it! Off to iTunes I go...

Just googled the lyrics and I got them completly wrong!