Each Friday, Billboard presents "Bubbling Under," a weekly look at new and noteworthy acts making their way toward Billboard chart success. Up this week: Yuna, Atlas Genius, Parmalee and OMG Girlz
CBS' broadcast of the 53rd Grammy Awards had a big impact on the Billboard sales chart this week, with Mumford & Sons and Justin Bieber in particular showing big gains.
![Omg [Cory Enemy Dub Mix]](http://www.billboard.com/files/styles/thumbnail_140/public/songs/o/165830060.jpg)
