Estelle's Song On Crystal Light Commerical

so, i was watching commercials, you know im a commercial junkie, but anyways, i saw a Crystal Light commercial came on, and i thought the song was hot. i was like wow, that person sounds mad familiar. Sure Enough. At the end of the commercial they tell you to check out there website and download the song. Who's Singing the song? None other than my girl Estelle! Yes, she is doing her thing in a BIG WAY!!! here's the website:

http://www.upumpitup.com