This is just one of many excellent tracks of Mariah's latest album "The Emancipation of Mimi". It's her alongside Jermaine Dupri, and immediately upon listening to it you know it's a hit. It's very fun, extremely catchy, and will probably be a big summer jam heard blaring out of car radios everywhere.
I bought the album when it came out last April and was constantly listening to this track. It will refuse to leave your head; it's the epitome of a good pop song: Fun, original, catchy, made to be sung along to.