1:15pm PT by Lesley Goldberg
'Glee' Preview: See 'American Idol's' Jessica Sanchez in Action (Video)
Gleeks, rejoice: After much fanfare and months of buzz, American Idol's Jessica Sanchez makes her long-awaited debut on the Fox musical Thursday.
In a new behind-the-scenes clip from Glee, Sanchez takes the stage as Frida Romero, a diva and lead vocalist at New Directions' Regionals rival. "I'm strutting my stuff!" Sanchez says of the role, which marks a departure for the young singer.
Romero will step into the Glee spotlight and sing two songs -- Zedd's "Clarity" and Little Mix's "Wings" -- during the episode, both tracks the season 12 Idol runner-up notes she loves.
Check out the preview, below, and hit the comments with your thoughts on Sanchez. She marks the latest in a string of guest stars during Glee's fourth season, which include Patty Duke and Meredith Baxter, who will also make their debut this week. Glee airs Thursday at 9 p.m. on Fox.