Singer Rebecca Black made surprise guest appearance, performing with Katy Perry on stage at her concert on Friday at the Nokia Theater.
The 14-year old Internet phenom, who recently picked up the Choice Web Star award on Sunday's Teen Choice Awards, shot to stardom when her song "Friday" went viral on YouTube.
Check out their performance!
Singer Rebecca Black, who became an Internet sensation with her homemade music video "Friday," has just released a new, slicker video: "My Moment." Enjoy the moment.
Top journalist Anderson Cooper is answering fan questions on his YouTube channel. One of them asked, "What was the last song to get stuck in your head?"
Internet singing sensation Rebecca Black has removed her popular music video "Friday" from YouTube.

The wildly viral video was pulled offline by Black's lawyers, who accused the producers, Ark Music Factory, of copyright infringement and unlawful exploitation of the aspiring pop star's publicity rights, according to The Hollywood Reporter.
Pop mom Britney Spears declared herself a "Femme Fatale," launching her tour in Sacramento on Thursday. Critics are hailing the performance as "her flashiest, fastest-moving, and most entertaining production yet."
Full story on MTV News
Get more "Extra" Scoop headlines for Friday, June 17!
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Rebecca Black's 'Friday' Video Removed from YouTube -- Huffington Post
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New Couple Alert: Gerard Butler and Ashley Greene -- PopEater
YouTube singing sensation Rebecca Black stopped by The Grove to talk with "Extra" host Mario Lopez about her sudden rise to fame -- and the death threats she's been receiving because of it.
The 13-year-old is wowed by hundred-million views her video of "Friday" has received so far. "It's weird. I'm still trying to process, is that really MY video?"
Black also responded to the backlash -- including death threats -- from harsh critics calling her the "Black Plague," which has forced her to travel with a bodyguard.
Although teen Internet singing sensation Rebecca Black has experienced her share of criticism (2 million "dislikes" on YouTube) for her song "Friday" -- the cast of "Glee" still plans to sing the viral song in an upcoming episode.

Early reports said Lea Michele (Rachel) would be covering the tune, but CNN says Kevin McHale (Artie), Chord Overstreet (Sam), and Mark Salling (Puck) will perform the cover, adding to the numerous parody video and remixes that have surfaced on the web.

Robin Roberts said Chris Brown knew about the subject matter ahead of time, and has invited him back to the show.
Full story RadarOnline
Get more "Extra" Scoop headlines for Wednesday, March 23!
Video: Rebecca Black Sings 'Friday' on 'Tonight Show' -- PopEater
Inside Brad Pitt & Angelina Jolie's Family Life -- People
Kate Major is Victim of Alleged Abuse by Michael Lohan - X17
Video: Watch the 'Scream 4' Trailer -- GossipCop





















