It's a new mashup from DJ Earworm! And it's good! Not as good as United State of Pop 2010, but it is definitely a summer jamm.
Artists featured: Avirl Lavigne, Black Eyed Peas, Chris Brown, Rihanna, Willow Smith, Kesha, and Enrique Iglesias.
PS- It had been a while since I last heard Rihanna and Chris Brown on the same song.. juust kidding.