MILEY CYRUS, JONAS BROTHERS AND JUSTIN BIEBER PRESENTING AT THE GRAMMYS

Miley Cyrus, the Jonas Brothers and Justin Bieber have joined the list of presenters at the 52nd Annual Grammy Awards.

Other presenters announced are Norah Jones and Ringo Starr , Carlos Santana , LL Cool J , Ricky Martin and Ke$ha .

The 52nd Annual Grammy Awards air January 31st on CBS.