Watch full Arthur - It's Only Rock 'n' Roll online full HD. Cartoon movies Arthur - It's Only Rock 'n' Roll online for free in HD. After watching the music video of "I Want It That Way" by the Backstreet Boys, Francine tells Muffy that they are sellouts, and decides to start her own band. After auditioning 14 people, the only good musician she could find is Mrs. MacGrady, who plays the keyboard. Mrs. MacGrady encourages Francine not to give up and suggests that she recruit the other musicians herself.