This is the tragic moment two helicopters collided in mid-air in an accident that claimed the life of American singer Oliver Tree.The crash, that killed six people, occurred in Rio de Janeiro, Brazil, on Sunday morning. The helicopters crashed into the parking lot of an electric car dealership, igniting a fire that engulfed at least 20 vehicles.The footage shows the two aircraft crashing before spiraling towards the ground.Other newly released surveillance footage also surfaced showing one of the helicopters plummeting to the ground as it spins wildly.Dramatic photos and videos have emerged showing the aftermath of the crash, with the mangled helicopters lying over smashed cars and burnt-out vehicles in the electric car dealership's parking lot.The other victims have been identified as Gaspar Prim, who is also known as Argentinian YouTuber Gaspi, Lucas Vignale, Lucas Brito Chaves Frota, and pilots Alexandre Souza and Charles Marsillac.Gaspi was just 23 years old and a highly popular content creator in his country. He had nearly three million subscribers on YouTube, where his videos collectively garnered tens of millions of views.Fire services spokesman Lieutenant Colonel Fabio Contreiras told CNN Brasil at the scene that it was unclear exactly how the accident unfolded. The footage shows the two aircraft crashing before spiraling towards the groundNew surveillance footage has surfaced showing one of the helicopters plummeting to the ground as it spins wildly Dramatic photos and videos have emerged showing the aftermath of the crash, with the mangled helicopters lying over smashed cars