Up in the Air
This probably isn’t the most conventional choice because the performance wasn’t the main focus of the scene and the actual song wasn’t particularly well performed. I think what I like most about this scene is how fun it makes this party look and by extension how fun it makes the Clooney character’s life look. Considering that this kind of Old School party jam is meant to elicit just this kind of fun it’s pretty much the perfect song selection and the fact that it’s performed by the real MC makes it all the cooler. Bust it!