#4. Chris Brown f/ Busta Rhymes & Lil Wayne "Look At Me Now"

Producer: Diplo, Afrojack, Free School

Label: Jive Records

Complex says: To think, a few years ago it seemed like Chris Brown’s career was all but over. Look at him now. After dropping the memorable “Deuces” (and it’s accompanying remix) last year, he came back with this ubiquitous single in 2011.

Diplo and Afrojack—both heavy hitters in the dance music scene—murder the production with a beat that sounds as good in the club as it does in the whip. And even if Breezy isn’t the best rapper, Busta Rhymes comes through with a show-stealing verse which even the likes of Karmin couldn’t resist covering.