The new reality series, according to Oxygen, will follow "performers [who] will compete for a multi-episode guest-starring role on season three of hit series 'Glee' [on Fox]."
According to the actor's twitter account, Criss "flubbed some lines from 'Raise Your Glass,'" but is "so happy to be supporting @thegleeproject."
Criss plays the role of Blaine, the openly-gay Warbler at Dalton Academy, on Fox's "Glee." Prior to "Glee," Criss was best known for his portrayal of Harry Potter in the YouTube hit, "A Very Potter Musical."
"Glee" airs Tuesday nights at 8 PM ET on Fox.
For more information on "The Glee Project," visit thegleeproject.oxygen.com.