Chris Colfer and Sarah Jessica Parker Credit:

Gleeks, meet Isabelle!

Kate Hudson isn't the only A-lister making her mark on McKinley High this season on Glee: Sarah Jessica Parker will also appear on season 4, and show creator Ryan Murphy gave fans their first glimpse at Parker's character via Twitter Monday.

"First scene! Kurt and Isabelle," Murphy tweeted, along with the pic of Parker, 47, and Chris Colfer in character as Kurt Hummel.

Starring as Kurt's sexy song-and-dance mentor, Parker is set to make her first appearance in episode 3, according to Entertainment Weekly.

Glee newbie Parker clearly made an impression on Colfer, 22, during their time on set. "I love her -- I love her! Can we keep her?" the actor tweeted in response to Murphy's posting.

Parker -- and Hudson -- will follow in the footsteps of Britney Spears, Lindsay Lohan and Gwyneth Paltrow, who all appeared in guest roles on the primetime musical series.

Glee's fourth season premieres Sept. 13 on FOX.