There's a busy weekend ahead, as there's plenty of Christmas shopping still to do, plus there are three different versions of "Avatar" (that's regular, 3D and IMAX) that demand eyeballs. (And if you prefer stylized violence to blue aliens or Santa Claus, there's also a phenomenal number of pro wrestling and MMA events this weekend.) So be sure to head into the next few days armed with all the news, opinions, predictions and behind-the-scenes information that littered the MTV Newsroom blog this week.
» Justin Bieber had one of the biggest weeks of his young career, as he sang for President Obama and also launched a Valentine's Day bouquet with his name on it.
» Chris Brown followed in the footsteps of Miley Cyrus and said goodbye to Twitter.
» The cast of MTV's "Jersey Shore" came by, and Snooki treated a number of staffers to some free advice.
» The Red Hot Chili Peppers lost another guitarist, so if they need some suggestions, they should give Robin Finck a call.
» Jesse McCartney stopped by the office and answered questions from fans that were posed by people following the MTV News Twitter page.
» The Rock and Roll Hall of Fame announced its new batch of inductees (ABBA? Really?), and we tried to predict who would be going in 25 years from now.
» Taylor Swift starred in a music video for Evan Taubenfeld's "Merry Swiftmas," which means that, technically, Taubenfeld got his wish.
» Ben Folds came back into our lives on NBC's "The Sing-Off," and we had no idea how much we missed him.
» Now that professional wrestlers have made fun of Kanye West, can we finally put that joke to bed?
» Tickets are on sale for the 2010 version of Coachella. There aren't any bands announced yet on the bill. but here's who you'll probably be seeing.
» Chamillionaire performed at a tribute concert at Fort Hood and treated us to an inside look at the day.
» The trailer for "Iron Man 2" hit the Internet, and it's got some great AC/DC tunes.
» Rihanna didn't wear a whole lot of clothes this week: She posed topless for a super-sexy spread in GQ and was scantily clad in the video for "Hard."
» This week was the anniversary of the first broadcast of "Nirvana: Unplugged in New York" on MTV, and we took a look back at that incredible spectacle.
» Finally, there'll be no #MusicMonday next week, but you can catch up on your new music with the past few entries, including this week's ode to Snoop Dogg, Yeasayer and Beck.