Rihanna To Play Grammys With Bruno Mars, Sting

Rihanna has joined the bulging list of performers at Sunday's Grammy Awards, and she'll have a little bit of superstar help. Shortly after Beyoncé killed it
 at the Super Bowl with a halftime reunion with Destiny's Child, the Grammys tweeted that Rih would take the stage along with Bruno Mars and Sting for a special performance at the 55th annual show.

"In case you missed, @BrunoMars @Rihanna + Sting (@OfficialSting) will be performing together at the 55th #Grammys next Sunday," read the tweet. No other details were confirmed on the collaboration. Rihanna played at last year's Grammys, where she took the stage for the TV debut of her collaboration with Coldplay on "Princess of China."

Other announced hookups on Sunday's show include the first-ever televised duet between nominee Ed Sheeran and Elton John, as well as a hook-up between country stars Dierks Bentley and Miranda Lambert.

Other recent additions to the Grammy performance roster include Frank Ocean, making his debut on the February 10 show, as well as three-time winners Maroon 5 and 14-time Grammy honoree Alicia Keys.

The program is already slated to feature sets from Justin Timberlake,
 Fun., Taylor Swift, Jack White, the Black Keys, Lumineers, Mumford & Sons and Carrie Underwood.

The first roster of presenters was also recently, and it includes Katy Perry, Neil Patrick Harris, Kaley Cuoco, Faith Hill, Carly Rae Jepsen, 
Tim McGraw and Keith Urban.

The Recording Academy will extend the weekend's activities with a one-hour special on February 9 entitled "The Grammys Will Go On: A Death in the Family." The show looks at how Grammy producers, hosts and musical artists made last-minute changes
 to the February 2012 program in the face of the death of Whitney Houston. The special will use never-before-seen rehearsal footage and behind-the-scenes interviews with artists and the Grammy production team to look at the 48 hours leading up to last year's show, which was thrown into turmoil with Houston's passing 24 hours before the telecast.

Among those giving their personal accounts are: Clive Davis, Dave Grohl, Jennifer Hudson, host LL COOL J, Bruno Mars, Katy Perry, Bruce Springsteen and Taylor Swift.