Late Night Highlights: Chris Colfer Debuts New Haircut, Tells Jay Leno a Bully Revenge Story

He may have missed the Glee cast performance on The X-Factor due to Warbler scheduling conflicts, but Chris Colfer was able to escape set for a few hours to debut a new haircut on The Tonight Show and tell Jay Leno about the time he literally led a high school bully into a pile of sh*t. Elsewhere, Mila Kunis complained about the Black Swan diet, Jimmy Fallon impersonated Justin Bieber, Russell Brand talked about the sex appeal of a Prius, and Charlie Day discussed the lost Danny DeVito prison rape scene.

5. The Black Swan Diet

Last night, Mila Kunis promoted Black Swan by discussing how miserable it was to stick to a 1200 calorie a day diet during production.

4. Try to Fit A Word in Edgewise, Jay

Russell Brand stopped by The Tonight Show to speed-talk about his wife Katy Perry, his family of cats and the danger he poses as a new driver.

3. Jimmy Fallon as Justin Bieber

The late night host impersonated teen sensation Justin Bieber -- if Justin Bieber was capable of reflecting on economic superpowers and receiving phone calls from Santa.

2. The Lost Danny DeVito Prison Rape Scene

When It's Always Sunny in Philadelphia star Charlie Day visited Conan last night, he talked about the cruel April Fool's joke he played on his co-star Danny DeVito.

1. Cowboy Chris Colfer

The Glee star showed off a new haircut over at The Tonight Show, before talking about his traumatic Reba McEntire memories, the lost art of "mutton busting" and how he got back at his own high school bully. The latter involved poop.