Oliver Tree's grieving mother has paid tribute to the late singer following the helicopter crash that claimed his life in Brazil.
Christine Begin Nickell shared an emotional childhood photo of her son on Facebook and reflected on the impact he had on those around him.
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"Our dear son Oliver, you made this world a better place," she wrote.
"We are so proud of you. RIP."

The touching message comes days after Tree died alongside five other people when a helicopter crashed in Rio de Janeiro on Sunday.
Also killed in the tragedy were YouTube star Gaspar "Gaspi" Prim, director and screenwriter Lucas Vignale, music producer Lucas Brito Chaves, and pilots Charles Marsillac and Alexandre Souza.
Tree's girlfriend, Fiona Chernavskaya, has also spoken publicly following the devastating loss.
Taking to Instagram Stories, she thanked followers for their support while asking for privacy as she mourns.
"I appreciate every ounce of support at this time," Chernavskaya wrote. "There are so many who have been affected by his passing, please show them love too."
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She also shut down speculation surrounding the couple's relationship.
"Please have some respect for my privacy, we kept our relationship very intimate," she said. "What I really don't need is to see gossip about other women that Oliver may have been seeing, we were monogamous."
"Right now I'm mourning my partner and best friend, anything else is unimportant. Please have some respect."
Earlier this week, Chernavskaya shared a heartfelt tribute to the singer, recalling the adventures they experienced together.
"To my best friend, we traveled to 43 countries, and all 7 continents together," she wrote.
"The magic, inspiration and joy you brought to my life and others, will never be forgotten or replaced."
She added: "You'd always tell me when we argued, if things don't work out in this lifetime, you will find me in the next. I love you buggy."
Tree's final concert took place in São Paulo, Brazil, on June 6. He had been scheduled to perform in Lisbon, Portugal, on July 1.
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