Oliver Tree, the California-born singer-songwriter and rapper known for tracks like "Life Goes On," "When I'm Down" and "Miss You," died in a helicopter crash in Rio de Janeiro, according to CNN Brazil.

A music producer says a last-minute decision stopped him boarding a helicopter that crashed and killed alt-pop singer Oliver Tree and five others.

CNN Brasil reported that Tree was killed when helicopters collided mid-air in Recreio dos Bandeirantes, a coastal area in Rio de Janeiro.