Exclusive Behind the Scenes by Jonathan Groff!

We gave the Glee actor a digital camera and let him loose on the set to snap uncensored photos of co-stars Lea Michele, Matthew Morrison, Jane Lynch and more. Bonus—and Spoiler Alert!—a sneak peek of the June 8 finale episode vocal showdown!

"I'm showing you my pit stains. And I think I changed my shirt maybe four or five times throughout that day, because I have a huge, huge armpit sweating problem. It's good for you, right? I thought maybe DETAILS would photoshop those out, but I have a feeling that's not going to happen. [laughs] Lea Michele and I did Spring Awakening together on Broadway for two years, and she will tell you that I dripped all over her and spit in her face, but I never smelled."

"This is when it was all said and done. We got together for a picture. We were so relieved. This is at the end of—Wait. Oh God, is my hand on her ASS there?! My hand is totally on her ass. That's our assistant choreographer, Brooke. I love her. The end of a long day."

"They're rehearsing before shooting. The time was so tight that they're literally rehearsing in the lobby of the theater as they set up. There's Cory and Lea and Amber and Jenna and Nia and Chris and Kevin. They're singing a Journey medley. The people on Glee could not be more open and sweet and genuine. It was really hard to leave them. "

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I'm in love with this boy! :D