Love it or loathe it there's no escaping Glee and since the death of Corey Monteith all eyes have been on the cast of Fox's former smash hit. The gang are back in action at McKinley High this eve in the first of a two part Beatles special. Sue Sylvester makes her return to the school's hallowed halls just in time to make the New Directions' lives miserable while X Factor USA judge Demi Lovato gears up to play Santana Lopez's latest potential love interest.