June 13, 2011 5:38pm PT by THR staff
Darren Criss on 'Glee Project': Watch Contestants' Surprise at His Appearance in Series Debut (Video)
Glee star Darren Criss appeared on the series debut of Oxygen's The Glee Project on Sunday night.
Judging by their reactions, it was apparently a surprise to the 12 contestants -- who are competing for a seven-episode role on Fox's Glee -- that Criss was going to be working with them one-on-one on their first task.
Criss, who plays Blaine Anderson on Glee, is touring the country with the rest of his castmates and will play a solo show Wednesday at New York's Irving Plaza.
Oxygen's Glee Project airs at 9 p.m. Sundays.