Glitter bombing, time machine-building and pink hair-dyeing.

Glee gave us a pretty good look at the September 20 season three premiere in its latest promo.

But Fox has now come out with even more information regarding the episode. It will be titled "The Purple Piano Project," for starters, and its official synopsis states that the students will return from summer break, Mr. Schuester will assign them "a project to get back on track" and Sue will start her "congressional campaign."

You want photos from the premiere? We've got those, too. Click on each to enlarge...

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.