Changed Man Chris Brown will make his return to the Grammys stage on February 12, after a three-year absence from the event.
He is currently serving five years' probation for his assault on Rihanna at a Grammys pre-party in 2009.
Brown is likely to perform 'Look At Me Now' for which he received nominations in the Best Rap Performance and Best Rap Song categories.
His album 'FAME (Forgiving All My Enemies)' is also up for Best R&B Album, while Rihanna will compete with Chris for the Best Rap Song prize for her inclusion on Kanye West's 'All Of The Lights'.
Adele, Nicki Minaj and Katy Perry will also perform at LA's Staples Centre on Sunday.