Katy Perry goes blue!

Katy Perry shows off her newly dyed blue hair while posing with a fan named Eric Berlanger on the set of an Adidas commercial on Thursday (December 12) in Santa Barbara, Calif.

Russell Brand filed for divorce from the 27-year-old pop star on December 30, citing “irreconcilable differences.”

“It was great to see her.” Eric says. “I met her a couple times before. I am a big fan! She was great, really nice. She seemed happy.” Can’t wait to see Katy’s Adidas commercial!