AceShowbiz -

John Mayer debuted a new look when stepping out solo on Saturday, August 25, just a few days after he broke up with Katy Perry. The rock singer showed up at the SkyBar at the Mondrian in Los Angeles to help Mindy Kaling celebrate her new show "The Mindy Project".

Mayer reportedly got the haircut from Sally Hershberger on Friday afternoon at her salon in Los Angeles. The "Your Body Is Wonderland" hitmaker ditched his shaggy hair for a short-and-neat do. After exiting the salon, he reportedly took a moment to look at his new do in the sideview mirror of his Range Rover.

Rumor suggested it was Mayer who dumped Perry. "They weren't serious, but she was really starting to fall for him," a source close to the West Coast popstar told PEOPLE. "She wasn't seeing forever with him, but saw it lasting longer than it did."

"Katy likes the 'new' part of a relationship, when everything's exciting and you're getting to know the guy. So she wanted to continue experiencing that with John," the source continued dishing on. "They may go out again, even, just as friends."

On Thursday, both Mayer and Perry went out separately. The former hit Soho House in West Hollywood and flirted with some females, while the latter attended Ferras' show at Bootsy Bellows club with her close friend Markus Molinari.