JoJo takes the stage during Q102.1 FM WIOQ’s Performance Theatre in Bala Cynwyd, Penn., on Wednesday night (September 7).

The 20-year-old musician retweeted some of her fans reactions to her performance: “just knocked Philly off the map ! <3 Amazing," one fan wrote.

After her performance, JoJo and her band started to relax. “Watching “Get Him to the Greek” with the band and crew on the bus. So funny because it’s kinda an accurate portrayal of the music industry!”

10+ pics inside of JoJo…