Katy Perry, Lady Gaga, Bruno Mars & More Performing At Grammy Awards

It was announced this morning that Rihanna and Drake will be performing a duet at the Grammy Awards next Sunday (the 13th).  Also added to the line-up of performers, Cee Lo Green with sing with Gwyneth Paltrow and the Jim Henson Company Muppets!

The 53rd annual Grammy Awards air Sunday, February 13th @ 7p on CBS.