Chris Colfer talks star-studded '8' play and Kurt's 'big song' on 'Glee'!

"Glee" actor Chris Colfer starred alongside Brad Pitt, George Clooney, Jane Lynch, Martin Sheen, Jamie Lee Curtis and a dozen other actors on a Los Angeles stage on March 3 for the play "8," based on the 2010 federal fight over the constitutionality of California's gay-marriage ban - Proposition 8.

Colfer played a witness for the plaintiffs in the court case - which were played by his "Glee" co-star Matthew Morrison and "White Collar" actor Matt Bomer, who has an upcoming guest role on the musical comedy series. Jamie Lee Curits and Christine Lahti played another couple who were also plaintiffs on the case.

The script, written by Academy Award-winning screenwriter Dustin Lance Black of "Milk" fame, took excerpts from the real court room of dialog the case. The play was directed by Rob Reiner and broadcast on YouTube. The webcast attracted 200,000 viewers, according to the Associated Press. The full play can be seen below.

"What he [the real witness] said was tragic and heart breaking, so all I had to do was just recite what he said and that did it," Colfer said of his role in the show and why the dialogue was so powerful.

"I, myself never really thought [marriage] was an option until the last five years when all this began," Colfer, who is openly gay, said. "As I get older, I just want a ring on my finger. I can't explain. I don't know if it's a wedding ring - well maybe it's a promise ring of some kind - but I definitely want a ring of some kind."

As for what's next for his "Glee" character Kurt, Colfer did not give away too many details but did say, "Kurt's going to have some stuff coming up, which I'm excited about."

He also said Kurt will be singing a "big song" before cryptically adding, "Kurt's going to go through some stuff that I don't think everyone is going to like, but I side with him. That's all I'm going to say."

Watch "8" below with actors like Brad Pitt, George Clooney, Matthew Morrison and Chris Colfer below. Skip ahead to the 30 minute mark for the start of the play.