The new season of TV musical GLEE will feature an episode inspired by Richard O Brien's cult movie and stage spectacular The Rocky Horror Picture Show.
Show creator Ryan Murphy told fans at Comic-Con in San Diego, California to expect the unexpected when the spooky musical hits Glee.
Meanwhile, the Glee castmates are to be animated for an appearance on The Simpsons.
The cartoon comedy show's producer Al Jean and creator Matt Groening let the news slip during a Saturday afternoon (24Jul10) press conference at Comic-Con.
House star Hugh Laurie and Wallace and Gromit are set for appearances on the show. Last week, Halle Berry and Paul Rudd were announced as new additions to The Simpsons family - Berry will play herself in an Oscars-related episode and Rudd will play a therapist on the show.