song in comedy central Sex and the City ad?

Does anyone know who sings the version of ''New York, New York'' featured on the Sex and the City ad on the channel Comedy Central? I love Frank Sinatra's version but I also like the lil bit they play on the ad but i don't know who its by. Anyone?

canadiangirl06:
check adtunes.com

Laura:
I've been searching for it for ages...just found it; "Cat Power" off the "Jukebox" album.