John Mayer

In frat houses everywhere, an acoustic cover of “Your Body Is a Wonderland” closes the deal with a Jessica Simpson look-a-like 90% of the time. In Hollywood, John Mayer simply walks into the Ivy. The 32-year-old musician, long recognized as the alt-bro Stevie Ray Vaughn thanks to serious chops and a tubby guitar style he once likened to Sting’s effusive baritone, has immortalized the quarterlife crisis, celebrity Twitter account, and melodic relationship ballad. Thanks to “Who Says?” Mayer’s first single off the forthcoming Battle Studies, here’s another landmark: The wake-and-bake trip to Japan.

Tue., Nov. 17, 7:30 p.m., 2009