Melanie Martinez, the alternative pop artist behind hits like "Dollhouse" and "Pity Party," posted a heartfelt tribute to her ex-boyfriend Oliver Tree following his death in a helicopter crash in Rio de Janeiro on Sunday. Tree, a 32-year-old musician and producer known for his eccentric persona and experimental music, was among six people killed in the accident.

Martinez shared her condolences on social media, writing "I know you're making the angels giggle," a tender acknowledgment of Tree's offbeat sense of humor that defined his public persona. The two had dated in the past and remained connected within alternative music circles that often overlap and intersect through collaborations and industry events.

Tree built a devoted following through his distinctive visual aesthetic and genre-blending sound. He released the album "Branches" in 2018 and maintained an active presence on social media and YouTube, where his quirky, often self-deprecating content garnered millions of views. His music ranged from indie rock to experimental hip-hop, and his work frequently featured absurdist humor and deliberately provocative imagery.

The helicopter crash marked a sudden loss for the underground and alternative music communities, where Tree had cultivated respect among peers for his uncompromising artistic vision. His death sparked an outpouring of tributes from fellow musicians and collaborators who worked with him throughout his career.

Martinez's public tribute underscores how interconnected the contemporary alternative music scene remains, with artists frequently crossing paths through tours, streaming platforms, and collaborative projects. Tree's influence on younger artists experimenting with genre boundaries and visual presentation will likely continue shaping the direction of experimental pop and indie music in the coming years.