Susan Sarandon wants to star in a 'Rocky Horror Picture Show'-inspired episode of 'Glee'.

The 63-year-old actress - who starred as Janet Weiss in the 1975 comedy musical movie famous for its transvestism - is keen to make a guest appearance in the TV series, but only if she doesn't have to sing.

She said: "Depending on what they wanted me to do. I'm not really a singer, so I wouldn't be very out there. I'm a terrible singer. But I'm flattered they want me to do it."

Susan admits she hasn't seen many episodes of 'Glee' - which follows the lives of a group of high school outcasts in a show choir and stars Lea Michele - but she hopes to catch up with it at some point.

She added to People: "I don't really have a TV, but when I was on location in New Orleans, I saw it and I was very moved and I thought it was really well done and fun. I liked it.

"I can't say I've seen a lot of the episodes. I'll wait for the box set."

Susan would be among a number of guest stars to appear in the show if she agrees to a role.

Britney Spears and actor Javier Bardem will be seen in the upcoming second series.