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 playful video showed Tree getting a haircut, jokingly calling himself "Neymar" after the Brazilian soccer star while holding a replica of the FIFA World Cup trophy, riding a motorcycle and grillin...