Grammy nominees Alicia Keys, Brad Paisley and Feist have joined the list of artists scheduled to perform at next month’s 50th Annual Grammy Awards ceremony. Superstar songstress Keys is the latest R&B addition to the list of acts who will perform during the Grammy Awards, which are set to take place at Los Angeles’ Staples Center and will air live on CBS. Previously announced performers include Beyonce, Aretha Franklin, Mary J. Blige, Rihanna the Foo Fighters, and Carrie Underwood. Organizers have also revealed the first batch of presenters, which includes Natalie Cole, Juanes, Cyndi Lauper, Bette Midler and Bonnie Raitt.