"United States of Pop 2009" flooded the radiowaves this past year, now DJ Earworm is back with another mash-up that is sure to make your eardrums happy. "Like, OMG Baby" just premiered this past week. It includes songs like "OMG" by Usher and "Baby" by Justin Bieber. Other artists included are Kesha, Rihanna, and Cheryl Cole. The video is below. Enjoy!