In 2003, he won the Grammy Award for Best Male Pop Vocal Performance for the 2002 single "Your Body Is a Wonderland" from the album Room for Squares.

In February 2005, he was awarded the Song of the Year Grammy for his song Daughters, which he composed while in the shower, from the album Heavier Things. In winning the award, he beat out such contenders as Alicia Keys, and Kanye West. He dedicated this award to his grandmother, Annie Hoffman, who died in May 2004. He also won Best Male Pop Vocal Performance, for which Elvis Costello, Prince and Seal were also nominated. In 2007, John won 2 Grammys, one for Best Male Pop Vocal Performance, for the song "Waiting On The World To Change," and also Best Pop Vocal Album for his album Continuum.

To date, Mayer has toured with many groups, including Maroon 5, Guster, Counting Crows, The Wallflowers, Teitur, Ben Folds, and Sheryl Crow.

In 2004, Mayer worked with hip hop artist and producer Kanye West, appearing both on Go and Kanye West's Bittersweet (released in the summer of 2007 as an iTunes pre-order bonus track to the album Graduation) and received praise from rap heavyweights like Jay-Z and Nelly. When asked about his ubiquitous presence in the hip hop community, he said, "It's not music out there right now. That's why, to me, hip-hop is where rock used to be."

It was around this time that he began hinting at a change in his musical interests, announcing that he was "closing up shop on acoustic sensitivity." In 2005, he began a string of collaborations with various blues artists, including Buddy Guy, BB King, Eric Clapton and jazz artist John Scofield. He also toured with the legendary jazz pianist Herbie Hancock, which included a show at the Bonnaroo Music Festival in Manchester, Tennessee.

Although Mayer has maintained a reputation for being a sensitive singer-songwriter, he is also an accomplished guitarist influenced by the likes of Jimi Hendrix, Stevie Ray Vaughan, Eric Clapton, Buddy Guy, Freddie King and B.B. King. In this regard, he has released an album with his band The John Mayer Trio Try!, which features a blues-rock style reminiscent of Jimi Hendrix.

In September 2006, Mayer released his third studio album, Continuum. The album, written and produced exclusively by Mayer (with the help of Steve Jordan from the John Mayer Trio) is a culmination of Mayer's growth as an artist and continues with the blues-rock style that he began to flirt with on Try!.

Also notable is John Mayer's various adaptations in style. He always maintained a blues tone, he introduced a rockier edge. However, in Continuum, he adopts a calmer genre, returning to his previous styles. Mayer released his fourth studio album entitled 'Battle Studies', on November 17, 2009.

2) John Jiddhu Mayer (b. Calcutta, Bengal, British India, October 28, 1930; d. United Kingdom, March 9, 2004) was an Indian composer known primarily for his fusions of jazz with Indian music. He was born into an Anglo-Indian family and, after studying with Phillipe Sandre in Calcutta and Melhi Mehta in Bombay, he won a scholarship to London's Royal Academy of Music in 1952, where he studied comparative music and religion in eastern and western cultures.

He worked as a violinist with the London Philharmonic Orchestra (1953-58) and then with the Royal Philharmonic Orchestra (1958-65), but was also composing fusions of Hindustani classical and Western classical forms from 1952 onwards. His Violin Sonata was performed by Yehudi Menuhin in 1955.

In the 1960s he worked extensively with the Jamaican jazz musician Joe Harriott, with whom he formed the group Indo-Jazz Fusions, a ten-piece featuring a jazz quintet and five Indian musicians. The new incarnation of the band, called John Mayer's Indo Jazz Fusions, was revived in the 1990s and continued to play live gigs -- featuring Mayer's son Jonathan Mayer on sitar -- until John Mayer's death.

From 1996 onwards, Mayer, though based in north London, worked part-time as composer-in-residence at the Birmingham Conservatoire where he introduced the BMus Indian music course in 1997.

Albums include Indo-Jazz Fusions I & II, Dhammapada, Etudes & Radha Krishna, and Asian Airs.