Oliver Tree Nickell (born June 29, 1993) is an American singer-songwriter, record producer, rapper, and filmmaker. Born in Santa Cruz, California, Tree signed to Atlantic Records in 2017 after his song "When I'm Down" went viral and released his debut studio album Ugly Is Beautiful in 2020. He achieved international recognition with his songs "Life Goes On" in 2021, and "Miss You" in 2022. He released his second studio album Cowboy Tears on February 18, 2022, and his third studio album Alone in a Crowd was released on September 29, 2023.