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.

PHOTOS: Glee's most notable guest stars

"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.

VIDEO: Chord Overstreet starts Justin Bieber tribute band on Glee

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.

PHOTOS: Love lives of Glee stars

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.

This article originally appeared on FIRST PIC: Sarah Jessica Parker Begins Filming Glee