Lady GaGa may be joining Beyoncé on stage for a gig in New York this summer.

An email sent out by concert listings website Songkick said that Gaga will perform on Beyoncé's 'Mrs Carter Show" world tour at the Barclays Center in Brooklyn on August 3rd.

No comment from Gaga's or Beyonce's camps.

Three days before One Direction's 3D movie "This Is Us," hits theaters on August 30th, the boy band will drop a new book called "One Direction: Where We Are".

A press release says: "This is the only official book from 1D charting their journey over the last year and a half -- from the places they've visited and fans they've met, to their thoughts and feelings, hopes and dreams, highs and lows."

The Wanted's new reality series, "The Wanted Life," will premiere June 2^nd on E!.

The show will look at the daily lives of UK musicians – Max, Siva, Jay, Tom and Nathan –as they touch down on Los Angeles for the first time to work hard and play harder.

Max, Nathan and Jay will attempt to juggle the limelight and being single, while Siva and Tom will try to keep up with the boys while not neglecting their long term girlfriends.

Demi Lovato said he has developed a "great friendship" with her ex-boyfriend Joe Jonas, three years after their breakup.

Demi admitted she was "really mad" at Joe after their decision to call it quits in 2010. But time has healed old wounds and the two are good friends again.

Demi said: "I can fortunately say that him and his brother Nick have always been there for me and are literally family and like brothers. We have a great friendship. And we may not be as close as we used to be, but that's OK."

Chris Brown seems to be over his breakup with Rihanna.

Breezy was spotted with his ex Karrueche Tran at the Bank nightclub inside the Bellagio in Vegas.

A witness said, "Brown was standing on the banquette dancing with Tran . . . he bent down a few times to kiss her, and kept running his hand through her hair and singing to her."