Go Run, Run

Perez Hilton held a “One Night in Los Angeles” Concert series last night, August 27, and some of our favorite stars attended the event.

JoJo showed up at the event and even sported two different outfits through out the night. A glam outfit and a rocker outfit,

Demi Lovato also attended the event. She surprised the concert goers when she came out and performed her hit single “Skyscraper”!

UPDATE: We have added video of Demi singing “Don’t Forget” as well as a video of her arriving at the event last night. Both videos can be found below the jump!

Source: WireImage

Thanks @pinkjuney!