Celebrity roundup! (photos)

LL Cool J came to the CNET stage to promote Boomdizzle, his new music software. Even CNET's own Brian Tong gets in on the singing action. Watch the video.

CES' ambassador for the Entertainment Matters Program is Eliza Dushku, and she hung out with the guys from The 404, live on the CNET stage. Watch the video.

Squee! Justin Bieber! Ahem, I mean, Justin Bieber was also at CES, geeking out with Tosy's dancing robot. Read more.

Seth Green was spotted at Showstoppers, one of the biggest gadget events associated with the Consumer Electronics Show.

Wayne Brady also made an appearance on The 404 on Wednesday afternoon.

50 returned to CNET's stage and dished with Brian Tong about his all-new Sync by 50 headphones. We saw another side of 50 with his philanthropic work and the Street Kings initiative. Watch the video.

Grover made an appearance at the Qualcomm keynote address to help demo an augmented-reality Sesame Street game using a tablet as a controller. Read more about the keynote.

Actor Will Smith was at the Sony press conference to pump up the company's Crystal LED display technology and give a preview of the new 3D Sony Pictures "Men In Black" movie, "MIB3." Watch the video from the press conference.

Want to know how to end a press conference in an awesome way? Do what Intel did: have wil.i.am close out the show. Read more.

Justin Timberlake took the stage at Panasonic's press event to announce MySpace TV, probably the most underwhelming announcement of the show. But hey, if anyone can make MySpace cool again, it might just be him. Read more.

Ryan Seacrest's appearance at the Microsoft keynote, was just one of several oddities. The company's CES swan song included a tweet choir (huh?), muppet (aw!), and unfortunately, not much news. Read more.

Singer and "American Idol" winner Kelly Clarkson sang "Mr. Know It All" to close Sony's press conference on Monday night, where screen resolution was put in the spotlight. Read more.