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.

The footage shows two helicopters flying through a gray, overcast sky moments before they appear to collide in mid-air.