Usher And Justin Bieber For Christmas No. 1?

'Baby' star Justin Bieber has revealed he's teaming up with Usher for a festive charity album.

After being discovered by Usher on YouTube, Justin Bieber has spilled the news that his "big bro" will be collaborating with him for new music with a festive feel.

"Just finished a late nt in the studio for the christmas album..." Justin said on his official Twitter page.

"It is big bro @UsherRaymondIV is on the album with me! #EPIC

"This duet with me and @USHERRAYMONDIV for #christmas is CRAZY!!!"

As well as lining up 'More' singer Usher for the charity album, Boyz II Men agreed to hook up with Justin for a new song.

"2day i woke up and realised that the group that made me want to sing @BoyzIIMen are now on the christmas album singing with me," he tweeted.

"I used 2 listen to their music and practice the runs. that is how i learned how to sing. now im in the studio with them making music 2gether.

"Im telling you...never say never...never stop dreaming....never give up. #DREAMBIG. Im honoured and blessed. thank u."

The album will be available to buy and download in time for the festive season.

Meanwhile Justin Bieber's girlfriend Selena Gomez has been announced as the host of this year's MTV Europe Music Awards, with the 2011 EMA bash taking place in Belfast on Sunday 6th November.