John Clayton Mayer is an American singer-songwriter and record producer. He is born in October 16, 1977. On his third episode of Current Mood, Mayer revealed he had been sober for two years. He stopped drinking after having what he says was a six-day hangover after Drake's 30th birthday party.In 2002, Mayer created the "Back to You" Fund, a nonprofit organization that focuses on fundraising in the areas of health care, education, the arts and talent development. The foundation auctions exclusive John Mayer items, such as guitar picks, T-shirts and signed CDs. The auctions have been successful, with some tickets selling for more than 17 times their face value.In March 2014, Mayer sued watch dealer Robert Maron for $656,000 when he discovered that seven of the $5 million in watches he purchased from the dealer contained counterfeit parts.