Born and raised in Los Angeles, California, Levine began his musical career in 1994, when he co-founded the alternative rock band Kara's Flowers, of which he was the lead vocalist and guitarist.The band split up after their only album, The Fourth World (released in 1997), which did not gain popularity.

The Maroon 5 frontman has been dating the model since early spring, insiders told Us Weekly.
"Behati was in and out, but they finally ended it," a source told the magazine about Adam's ex-girlfriend, Victoria's Secret Angel Behati Prinsloo, who he began dating in May last year.
; born 19 March 1986), also known as Anne V, is a Russian-American model.
She is perhaps best known for her 10-consecutive-year run of appearances (2005–2014) in the Sports Illustrated Swimsuit Issue.
The source said: "It wasn’t an abrupt ending." They added that the 'Moves Like Jagger' singer's relationship with Nina was "still new" but that he was "having fun again".
Nina was apparently seen on the set of The Voice, on which Adam is a mentor back in May.
The singer had previously vowed not to get married.
"Famous last words: 'I'll never get married,'" he told Jay Leno in October last year.
She was the object/subject of Joanne Gair body painting works in the 2005 edition.
Vyalitsyna has walked for fashion houses such as Shiatzy Chen, Chanel, Prada, Louis Vuitton, Dolce and Gabbana, Roberto Cavalli, Miu Miu, Chloé, and Givenchy.
In 2001, the group was reformed – with guitarist James Valentine joining the line-up – and began a new musical chapter, changing their name to Maroon 5.