Access Hollywood

2:12 -- Go behind the scenes with Tina Fey and Brian Williams as they film the veteran newsman's wacky guest appearance on NBC's "30 Rock."

1:01 -- Check out Rihanna as she playfully strikes different poses for the cover of Glamour magazine, where she was hailed as one of the magazine's Women of the Year.

2:16 -- Go behind the scenes of Taylor Swift, Pete Wentz, Rivers Cuomo, and Travis Barker's commercial shoot for the all-new "Band Hero" video game, from the creators of "Guitar Hero."

1:34 -- Mariah Carey and Mo'Nique tackle sexual and physical abuse and teenage pregnancy in the new movie, "Precious," executive produced by Oprah Winfrey.

2:16 -- Go behind the scenes of Adam Lambert's "Time For Miracles" music video from the "2012" motion picture soundtrack. Plus, get a glimpse of the finished video.

1:44 -- Jon Bon Jovi and Richie Sambora take a look back at a darker time when the band rallied to save Richie from his addiction to pills and alcohol.

1:55 -- "Paranormal Activity" cost nearly nothing to produce and yet it has defied all expectations at the box office and become a mega-hit. Plus, is there a sequel in the works?

2:27 -- Travis Payne, Kenny Ortega, and Michael Beardon talk about bringing Michael Jackson's "This Is It" to the big screen.