Rihanna and Mary J. Blige have been added as performers for the 50th Annual GRAMMY Awards. Mary J. Blige will join Aretha Franklin, the Clark Sisters, Israel And New Breed, and Trin-I-Tee 5:7 in a special gospel segment. Rihanna will also perform with reunited group The Time, it was announced today by The Recording Academy. They join previously announced performers Beyoncé, Foo Fighters, Janet Jackson, Tina Turner and Carrie Underwood. The music industry’s premier event will take place live on Sunday, February 10, at STAPLES Center in Los Angeles and will be broadcast on CBS from 8 – 11:30 p.m. (ET/PT).