They join previously announced performers Katy Perry , Maroon 5  with Christina Aguilera , Justin Bieber , Jennifer Lopez , Mary J. Blige, Kelly Clarkson, Pitbull , Marc Anthony , Chris Brown  and LMFAO . Nicki Minaj  and David Guetta  are slated to open the show.
The host-free event will be broadcast live from Los Angeles' Nokia Theater on Sunday, Nov. 20. on ABC. Among the nominees: Adele, who's up for four awards including Artist of the Year and Favorite Album; Perry, Lady Gaga , Lil Wayne , Rihanna , The Band Perry  and Taylor Swift  each collected three nods.
Presenters scheduled to appear include Queen Latifah, Joe Jonas and Jenny McCarthy. Avril Lavigne and Benjamin Bratt will also hand out trophies, THR can reveal.
- News