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.

Officials in Brazil on Monday were inspecting the site of a crash in which six people were killed Sunday, after two helicopters collided midair over a suburb of Rio de Janeiro.

The “Alien Boy” singer was among six passengers killed when two helicopters collided midair and crashed in a car dealership parking lot.