Zap2It has an interview with Danny Pudi. Here is the highlight:
A Chicago native, Pudi can also sing in Polish, as he demonstrates while shooting promos on set at Paramount Studios in Hollywood.

“I sang a lot as a little kid,” says Pudi, the son of an Indian father and a Polish mother. “My mom would be very happy.”

“It’s a really funny way,” Pudi says, “to do something quick and fun that is not necessarily tied to the show but takes you into the world of Greendale and these characters, Abed and Troy, and allows us to play off each other. We’ve been shooting those on the fly. There’s not a lot of prep time.”