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His ex-girlfriend Jennifer Aniston is rumored to be moving on with co-star Gerard Butler, leaving John Mayer no choice but to hustle to find his rebound. And 24-year-old model/aspiring actress Scheana Marie Jancan is the lucky lady the crooner has chose for his latest conquest.

The two met at The Grand Havana Room in Beverly Hills where Jancan served Mayer drinks. A spy told Star magazine, “Scheana was shocked and thrilled when John asked her out. She has always thought he was hot, and she said yes right away, writing down her cell phone number on a napkin.”

The dark-haired twosome have been spending quality time together at Mayer’s home in Calabasas, California. The insider also revealed, “Scheana said she has loads of fun there; it’s like spring break!” Exactly, sweetheart. Just when you start to get comfortable with that one, party’s over and school’s back in session. Just ask Jenn.

Gallery Info: John Mayer leaves Katsuya restaurant while thinking about his new lady Scheana Marie Jancan.