Brunner grew up bilingually in Freiburg im Breisgau as the daughter of a German father and an American mother. She founded her first rock band as a teenager.[2]
After finishing school, she studied jazz and pop music at the Popakademie Baden-Württemberg. She also attended Columbia College Chicago.[3] She focused on singing and songwriting. She also had the opportunity to play gigs with individual bands.[4]
In 2018, Brunner sang a duet with Santiano with the song Im Auge des Sturms.[5]
Brunner is in a relationship with Hannes Braun and has already performed on stage with him and his heavy metal band Kissin' Dynamite (European tour). She came to Exit Eden through a studio job at Elephant Music, where she had worked until 2019. In 2022, Brunner released the debut album of the same name with her band League of Distortion. She founded League of Distortion together with Kissin' Dynamite guitarist Jim Müller.[6]