After a couple of weeks of repeatedly hearing about 10 or 20 seconds of this catchy song on a Verizon commercial, I decided to find out who sings it. Thank goodness for the instant gratification of internet knowledge. I found it, and here it is:
It turns out the lyrics and booty shaking by Christina and her backup girls are quite suggestive, but if you can get past that, and just enjoy the music and the beat, it's a fun song. Sounds like it came from the 40's.