Listen to Adam Lambert Covering Lady Gaga on 'Glee'!

Adam Lambert's first song from 'Glee' has leaked - and it's a Lady Gaga cover!

Adam Lambert's first song from 'Glee' has leaked - and it's a Lady Gaga cover!

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Adam Lambert has a guest-starring role on Glee this season, and we're finally learning some information about his character.

According to Chris Colfer, who plays Kurt Hummel on the hit Fox show, Adam's role is a villain! "He’s going to play my nemesis," Chris confessed about Adam's character, who has the unusual moniker Starchild. The two characters clash when Starchild auditions to join Kurt's band.

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Starchild first appears in next week's episode, which is entitled "A Katy or A Gaga." Considering that the first song Adam will be singing on the show is Gaga's tune "Marry the Night," we can guess which side he picks. He also reportedly covers the diva's latest single, "Applause" and has a duet with Naya Rivera's character, Santana Lopez.

Adam isn't the only big-name guest who will be on Glee this season. X Factor judge Demi Lovato will also be joining the cast for several episodes, playing a love interest for Santana.

Next week is the first new episode of Glee since the show's tribute to star Cory Monteith, who died of a drug and alcohol overdose earlier this year. Check out Adam's cover of "Marry the Night" below!

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