Lady Gaga is to become the latest star guest on the hit TV show "Glee." The "Poker Face" hit-maker has signed up to join the cast of the all-singing-all-dancing series following a request from show bosses.

Glee creator Ryan Murphy says, "We reached out to Lady Gaga and she said, 'Yes, I'd love to be a part of it.' So we will be doing Lady Gaga this season."

Murphy has also praised Madonna for giving him permission to use 10 of her songs in an upcoming tribute episode to the Material Girl, insisting she "cooperated in every way possible."

Other stars who have made cameos in the show include Jennifer Lopez and Josh Groban.

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