Once A Tree are a Canadian music duo consisting of married couple Jayli and… Read Full Bio ↴Once A Tree are a Canadian music duo consisting of married couple Jayli and Hayden Wolf. The Wolfs were both raised Jehovah's Witnesses in British Columbia, Jayli from Creston and Hayden from Vernon, and met online through mutual friends. Jayli decided to leave the religion and convinced Hayden to join her. The pair moved to Toronto together when Jayli won a songwriting contest and married in 2012.

Once A Tree debuted with a self-titled EP and the single "Light Me Up". Their first professional EP Thousand Lives, released in 2015 under Toronto-based Foreseen Entertainment, followed the single "Howling", inspired by their childhood religion. They continued working with Foreseen, going on to release their first album Phoenix in 2017. Rolling Stone named them "New Artists You Need to Know" and compared them favourably to Phantogram, Crystal Castles, and Chvrches. Phoenix won Best Electronic Music Album at the 2018 Indigenous Music Awards.

The duo released their second album Fool's Paradise independently in 2020. Fool's Paradise was described as more lighthearted than their previous work, which Hayden attributed to coming "to a much happier place in life". The single "Rush" was filmed in Los Angeles, and the acoustic version featured Boy Pape.

Jayli also acts and releases solo music, such as "Child of the Government" about her First Nations father being taken in the Sixties Scoop; Hayden is a visual artist and photographer. They co-write most of their songs, and produce most of their music videos themselves.