Jo is a session singer, composer, arranger and songwriter, and since 2006 has toured with Grammy Award-winning vocal group, The Swingles. As a singer, she has provided vocals for numerous films, TV shows, commercials and video games. She is the solo voice heard in the DreamWorks logo (2022-present) and can also be heard as the soloist in the final scenes of Wonder Woman 1984. As a writer, Jo co-wrote the end credits to the 2017 Alexander Payne movie, Downsizing and arranged the vocal parts for the track. Jo studied at the Guildhall School of Music and Drama.