John Clayton Mayer (born October 16, 1977) is an American pop and blues rock musician, singer-songwriter, recording artist and music producer. He appeared on Saturday Night Live as a musical guest on October 4, 2003 where he performed "Bigger Than My Body" and "Clarity" and made a cameo on September 15, 2012 where he played the guitar in both of musical guest Frank Ocean's performances.
He was also impersonated by Jimmy Fallon on the December 13, 2003 episode during the Weekend Update segment, by Bill Hader on the April 14, 2007 episode during the "An Intimate Moment with John Mayer & Jessica Simpson" sketch and on the January 26, 2013 episode during the "Rumble" sketch and by Ashton Kutcher on the April 12, 2008 episode during "The Mellow Show" sketch.