Oliver Tree, the California-born singer-songwriter 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.

Two helicopters collided over Rio de Janeiro on Sunday morning and crashed in the city’s western zone, killing all six people aboard, firefighters said.

Police said that American singer and comedian Oliver Tree, 32, was on the list of passengers handed to aviation authorities, but have not been able to identify the bodies of those killed in the crash.