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.

The (alt pop) US musician and internet personality Oliver Tree was among six people who died when the helicopter he was travelling in collided with another in Brazil.

The genre-blending singer, songwriter and producer was among six people killed when two helicopters collided over Rio de Janeiro on Sunday (June 14), according to CNN Brazil and the Associated Press.