Generation O! is based around 8 year-old Molly O! who happens to be a rock star. She's the lead singer of the rock band Generation O! who are a massive sensation. she is managed by Colonel bob and backed by Nub on guitar, her cousin Eddie (Edwina) on bass and Yo-Yo (yup, a kangaroo) on drums. Molly O! hangs out with her best friend Chadd and is always trying to keep away from her troublesome brother Buzz.