YouTuber KSI has shared an emotional tribute to US singer-songwriter Oliver Tree, who was killed in a mid-air crash between two helicopters in Brazil, according to local reports.
The helicopters collided over Rio de Janeiro on Sunday morning, killing all six people onboard both aircraft.
Tree was listed on the passenger manifest of one of the aircraft which crashed into a car dealership in the city’s western zone, igniting a fire that was subsequently extinguished.
Police have not yet been able to formally identify the bodies of the victims.
Tree, a 32-year-old American artist, collaborated with KSI on the track “Voices” and is widely known for his hit “Miss You.”
Taking to X, KSI expressed his profound grief, writing: "Can’t believe I’m actually having to type this. You’re 32 man. You should still be here. You still had so much life to live. So much music to make. So much content to make. You’re a legend and will always be a legend. Still doesn’t feel real. Genuinely feel sick. I love you bro."
Tree was only weeks into his ambitious World’s First World Tour, which aimed to see him perform on all seven continents.
He had recently played in Buenos Aires, Argentina, on 4 June, and shared a video of himself playing football in a Brazilian neighbourhood just the day before the incident.
His tour schedule included more than 70 shows across 30 countries, with upcoming UK dates in Glasgow, Manchester, and London slated for September.
In 2024, he received a Brit Award nomination for International Song alongside German producer Robin Schulz for “Miss You,” which peaked at number three in the UK singles chart.
Beyond his musical career, Tree also held a Guinness World Record, achieved in 2020, for the largest kick scooter, measuring 0.16m tall and 3.13m long, a feat he reportedly undertook to "fulfil a lifelong dream".
Officials have launched an investigation to determine the cause of the collision.
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