Britney Spears, Demi Lovato to join "The X Factor"

Britney Spears, Demi Lovato

/ Getty/CBS

(CBS News) After weeks of speculation, Britney Spears and Demi Lovato have officially announced they will join "The X Factor" as judges.

Both stars appeared at Fox's Upfronts on Tuesday in New York to announce the news.

Pictures: Britney Spears

Spears, 30, tweeted the news by posting a photo of herself, alongside Lovato, Simon Cowell and L.A. Reid of "The X Factor":

#britneyxfactor #SimonBritneyDemiLA twitter.com/britneyspears/...

— Britney Spears (@britneyspears) May 14, 2012

Lovato, 19, followed suit on her Twitter page:

It's official! #SimonBritneyDemiLA#DemiXFactor. I am so excited!!!! twitter.com/ddlovato/statu...

— demetria lovato (@ddlovato) May 14, 2012

The announcement comes after a major shake-up after season one, which ended with both Paula Abdul and Nicole Scherzinger leaving the show.

There's no word yet on who will replace Steve Jones as host.

Tell us: What do you think about Britney Spears and Demi Lovato as "The X Factor" judges?

[erasmus111]

Well, maturity wise, L.A. and Simon have found their match with these girls.

[fedup12]

X factor dies a horrible death. News at eleven.

[RealiteBites]

I used to love American Idol back when it first debuted in like 2000 with Kelly and Justin, etc. But it started to get tired around seasons 3 to 5 (the last time the show succeeded in actually delivering a star - Season 1 Kelly, Season 2 Clay, Season 3 Jennifer Hudson, Season 4 Carrie Underwood, Season 5 Chris Daughtry ... there have been others who have done well on Broadway, like Constantine Maroulis - Season 4 or 5?). And then there's been all these knock-offs (America's Got Talent, The Voice, etc.)

I sometimes tune it, but not like I used to. I barely watched X Factor with Simon and Paula because it felt so circa 2000. But still, even with the change of judges, not feeling much more interested.

May watch Duets ...

[JustSayIt]

Hahaha! Your argument is invalid since you mentioned Daughtry and Aiken are stars. Here's an idea. Get off your couch and go have a life outside of your living room. "May watch Duets..." WHAT!?

[formerlyluvnut]

People actually watch this stuff? Seriously???