Actress and singer Olivia Holt may not know herself as well as she thought she did! Watch more Beat Your Superfan! br In Cosmo’s series, ‘Beat Your Superfan’ she went up against Cosmo's own Sam Feher, her #1 supporter, to see who knew all the deets about Olivia’s life and career best! br br Be sure to stream Olivia’s new EP “Love U Again” out now *and* keep your eyes out for her new TV series ‘Cruel Summer’ on Freeform.