Legendary singer/actress Barbra Streisand takes a spin at comedy and walks the red carpet with co-star Seth Rogen at the Los Angeles premiere of "The Guilt Trip." Plus, Quentin Tarantino and Uma Thurman laugh it up at a screening of "Django Unchained" in New York; Seal, Ne-Yo, Jennifer Hudson and more perform at the Nobel Peace Prize Concert in Norway; Hugh Jackman is honored at a Museum of the Moving Image Salute; Justin Bieber rocks out during Hot 99.5's Jingle Ball 2012 in Washington, D.C.; and cast of "Awkward" celebrates Jillian Rose Reed's 21st birthday while teaching seniors about tech for Intel's Grandparents Gone Wired Campaign.