John Mayer arrived at LAX yesterday to go through security and catch a flight out of town. He's been jet-setting around the country for the last few weeks, making stops in NYC and Nashville, during a hiatus from his Battle Studies tour. He'll be back on stage soon, though, with a show scheduled for July 16 in Charlotte, NC. The break from performing has given John the chance to do some introspection, and he's lately pondered subjects like LeBron James's decision to go to the Miami Heat and what he'd do for a Klondike bar. John also plays a part in someone else's milestone this weekend — we took a look back at Jessica Simpson's most famous moments in honor of her 30th birthday and Mr. Mayer has his place.