Adam Lambert makes his debut as Elliott 'Starchild' Gilbert in the next episode of 'Glee'.
Titled 'A Katy Or A Gaga' the brand new episode premieres in America on November 7th.
In the clip Adam is seen performing Lady Gaga's 'Marry The Night'.
Speaking about his role, Adam said: "It was such warm welcome on my first day on set.
The cast were so sweet and they have a family vibe so I instantly felt I was in a safe, creative place with them and we jumped right in.
Excited to be on set again!"
'Glee' star Lea Michele previously posted a picture from set showing Adam and the cast behind microphones.