Though it was rumored Britney Spears would attend, sadly the mom tart was a no-show. Guess kickin' Kevin to the curb has been keeping her busy. But that's not to say there weren't lots of other happenings at the Las Vegas event. Kanye West was ranting, Shakira was shimmying (as only she can), Mariah Carey was... trying to breathe in a typically tight dress and Gwen Stefani looked like she had a little baby bump. Take a look back at the eventful evening.