Lady Gaga and Janet Jackson have been confirmed to perform on The X Factor.

In her only UK performance of the year, Velvet Rope star Janet – whose greatest hits compilation The Best is available now – will be flexing her vocal chords to perform live on the competition on December 6.

Also singing on the penultimate show is Lady Gaga, who will be performing her latest hit, Bad Romance, for the first time ever on UK television.

Five-time Grammy award-winning Janet and Lady Gaga – who’s been promoting her latest album The Fame Monster – are the latest stars to join the bill for the ITV show.

Other musicians who have appeared on The X Factor include Mariah Carey, Susan Boyle, Whitney Houston, Bon Jovi and Westlife.

Rihanna and Alicia Keys will be performing hits from their new albums on Sunday.

This article is not exactly about Gaga, but it is about her upcoming appearance in the “Gossip Girl”.

Remember the gay kiss we were teasing on Gossip Girl between Ed Westwick and Neal Bledsoe? Well, Leighton Meester has more details on the upcoming lip-lock, orchestrated her character, Blair Waldorf.

To answer the obvious question on all our minds, Leighton tells MTV News, “No, it’s not tied into a threesome…I sort of make the kiss happen. I can tell you that much, and that’s it.”

If that weren’t enough excitement for one season, Meester also divulged some details about Lady GaGa’s upcoming appearance on the CW series. “She just makes a cameo performance, and we talk about her for awhile. But, yeah, we all have a storyline where we put on a cabaret with her songs. You’ll have to wait and see,” Leighton explains.

Can’t wait to see what outlandish outfit GaGa puts on to make sure she’s the trendiest-dressed character on-screen.

Lady Gaga will probably perform on french show Taratata, Here is their official advertisement. More information soon.

Lady Gaga is apparently set to appear on US TV show Gossip Girl.

The Paparazzi singer will play herself in an upcoming episode of the series, reports the New York Daily News.

Gaga was due to film her role in the New York-set show, which stars Blake Lively and Chace Crawford, this week and it’s rumoured she will be performing in the episode.

The 23-year-old, whose real name is Stefani Joanne Angelina Germanotta, isn’t the first star to sign up for a cameo on Gossip Girl – America’s Next Top Model host Tyra Banks played a movie star diva and singer and actress Hilary Duff shot a guest role as a university student.

Btw. Stay tuned we are coming really soon!