The Santa Cruz, California native had nearly 20 million users across social media platforms and more than 11 million monthly listeners on Spotify.

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.

American singer Oliver Tree was among those listed on the passenger list filed with aviation authorities for one of the helicopters that crashed into the parking lot of a car dealership, although poli...