American musician Oliver Tree, 32, is reportedly among six people who died in a helicopter crash in Brazil. Two helicopters collided over Rio de Janeiro on Sunday morning, crashing in the city's western zone and killing all six people onboard, the Associated Press confirmed.Tree, best known for his viral hits When I'm Down and Life Goes On, was in Brazil on a world tour His internet-savvy, meme-friendly music and persona often incorporated comedy and stunts into his marketing, music videos and content creation.He was born Oliver Tree Nickell in Santa Cruz, California on 29 June, 1993, and took an interest in music from a young age.In 2010, he began self-releasing music under the pseudonym Tree and in 2013, released his debut EP, Demons.He signed to Atlantic Records in 2017 shortly after When I'm Down, a collaboration with producer Whethan, went viral