In this week's top 10 videos that had everyone buzzing, Lady Gaga reveals the inspiration for her "Telephone" video , Ludacris gets tipsy with Martha Stewart, Nicole Richie busts a rhyme for Ellen DeGeneres, and more.
1) Lady Gaga Talks "Telephone" Video
After premiering her new video "Telephone"  on E! last night, the homely (kidding!) pop star shares her many sources of inspiration for the clip, from Madonna to Tarantino.
Bonus Behind-the-Scenes Look: In the few minutes that Vampire Weekend spent performing its its new single "Giving Up the Gun" on 'SNL,' host Zach Galafianakis managed to shave his trademark "homeless professor" beard backstage. (Watch )
2) Ludacris Gets Tipsy, Shares Secrets With Martha Stewart
Luda sips on his new Conjure cognac with the daytime host and reveals a secret that the world could have done without hearing: "I work so hard that when I'm exhausted, I rap in my sleep."
Bonus TMI Moment: Jessica Simpson tells iheartradio, "I never brush my teeth." Thanks for sharing. (Watch )
3) B.o.B. Shows Us "Beautiful Girls, All Over The World"
Rising Atlanta rapper B.o.B. and guest crooner Bruno Mars unveil the clip for their lady-loving hit single, "Nothin' On You," which is at No. 16 on the Hot 100 and climbing.
Bonus Collabo: Disney stars Joe Jonas and Demi Lovato team up for the visuals to their new eco-frinedly duet, "Make a Wave." "You never know what can grow from just one seed," sings Jonas. Indeed. (Watch )
4) Nicole Richie Raps For Ellen DeGeneres
Joel Madden's wife-to-be busts a rhyme on for the daytime host, and it goes a little something like this: "Caution -- walking down the street/You better watch out and step to the beat." Highly unfortunate.
Bonus 'Suck' Fest: Here's the trailer for "Suck," a movie featuring Alice Cooper, Iggy Pop and Moby about band members who become vampires to get famous. Sacrificing your mortality is the new licensing your song for an iPod commerical. (Watch )
5) Broken Bells Take 'The High Road' To Letterman
The Shins' James Mercer and producer James Mercer bring their new collaboration to late night.
Bonus Late-Night Gig: Indie ingenue Joanna Newsom performs "Soft As Chalk" on "Late Night With Jimmy Fallon." (Watch )
She & Him Have Fun 'In the Sun'  
Lil Wayne And Eminem 'Drop The World'  
Last Week's Videos 
- Viral Videos