Happy Birthday, John Mayer! John Clayton Mayer turns <br />42 years old today. Here are five things you may not have known about the singer. 1. Mayer was inspired to <br />play guitar after watching <br />Michael J. Fox’s guitar solo <br />in ‘Back to the Future.’ 2. He once broke and gave Alicia Keys half of his <br />Grammy award for Song of the Year. 3. Mayer has a watch <br />collection worth <br />millions of dollars. 4. After he was diagnosed <br />with cardiac dysrhythmia <br />and spent time in the hospital, <br />he began writing songs. 5. He has a “SRV” tattoo in honor of late guitarist Stevie Ray Vaughan. Happy Birthday, <br />John Mayer!
