Top Videos: Justin Timberlake's Barbershop "Sexy Back," Jane Lynch Raps, Breaking Bad in 1995

Here are TVGuide.com's Top Videos of the week, featuring Justin Timberlake on Late Night with Jimmy Fallon, Billy Joel giving a Vanderbilt student the opportunity of a lifetime, Jane Lynch rapping "Super Bass," and more:

Breaking Bad in 1995: What would the opening credits of Breaking Badlook like if it was a family sitcom from the mid-1990s? Watch these re-done opening credits to find out. Also, be sure to check out other series that have gotten a similar parody treatment, including Game of Thronesand The Walking Dead.

Astronaut Makes a Sandwich in Space: Zero gravity never fails to amuse. In this entertaining and informative video, Canadian astronaut Chris Hadfield tries to make a sandwich in space. If only all science lessons were this interesting!

TV Scorecard: What's renewed? What's canceled?

Justin Timberlake on Jimmy Fallon: It's all Justin Timberlake, all the time on Late Night with Jimmy Fallon this week — and we're not complaining. The singer, whose new album The 20/20 Experience comes out next week (but is streaming on iTunes for free now), is stopping by the late-night show every night for a performance, as well as a couple chats with Fallon. Here are a couple of our favorite moments so far. First, a barbershop quartet version of "Sexy Back": 

And here, a performance of his new song "Mirrors":

Baby Seal Tries to Climb On a Surfboard: Your weekly lesson in perseverance is brought to you by this determined (and adorable) baby seal pup, who's trying to climb up on a slippery surf board to hang out with his friends. Follow your dreams, seal. 

Give these stars a show!

Billy Joel Performs with Vanderbilt Student: Billy Joel recently participated in a Q&A session with students at Vanderbilt University, where piano player Michael Pollack, a lifelong fan and Long Island native like Joel, asked his idol if he'd be willing to accompany him on "A New York State of Mind." After a brief moment of consideration, Joel's response was, why not? Check out their duet: 

Jane Lynch Raps "Super Bass": Gleestar Jane Lynch learned all the words to Nicki Minaj's "Super Bass" for an episode of the Fox musical series — and demonstrated her knowledge on Conan. Enjoy: