From 2017 to early 2023, Guernica was the singer of the all female band Thundermother. She had a key role in the band's biggest accomplishments to date with her unique sound, songwriting skills and relentless drive.
In January 2023 alongside Mona Lindgren and Emlee Johansson, two former members of Thundermother, they started the band The Gems. In less than a year, The Gems signed with Napalm Records and recorded their debut album, set to be released in January 2024. The Gems had the honor of performing at STIM's 100th-anniversary celebration, opening for the band Night Flight Orchestra, and have already played internationally.