Adam Noah Levine is an American singer-songwriter, multi-instrumentalist,  and actor, widely known as the lead vocalist for the Los Angeles pop rock band, Maroon 5.

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. After the commercial failure of their only album, The Fourth World (released in 1997), the band split up. 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. In 2002, the band released their first album, Songs About Jane, which went multi-platinum in the US. Since then, they have released four more albums, It Won't Be Soon Before Long (2007), Hands All Over (2010), Overexposed (2012) and V (2014). As part of Maroon 5, Levine has received three Grammy Awards, two Billboard Music Awards, two American Music Awards, an MTV Video Music Award and a World Music Award.

Since 2011, Levine has served as a coach on NBC's reality talent show The Voice. The winners of the first and fifth seasons, Javier Colon and Tessanne Chin, were on his team. In 2012, he made his acting debut as a recurring character in the horror television show American Horror Story: Asylum for the series' second season. He also appeared in the film Begin Again.

As an entrepreneur, Levine launched his own eponymous fragrance line in 2013. The same year, he collaborated with Kmart and ShopYourWay.com to develop his menswear collection. He also owns a record label, 222 Records. In 2013, The Hollywood Reporter reported that "sources familiar with his many business dealings" estimated Levine would earn more than $35 million that year.