There are already some pretty stellar collaborations on tap for the 53rd annual Grammy Awards this Sunday night. But on Thursday (February 10), things got way bigger with the announcement that two performers who rarely take the stage have been added to the entertainment lineup on music's biggest night.

With his one-time protégé up for a leading 10 awards, reclusive studio mastermind Dr. Dre has signed on join Eminem at the show, marking Dre's first live television performance in more than a decade and his first time rapping at the Grammys. And though it was not announced, you can expect him to cue up his new single, "I Need a Doctor," which features Slim Shady and is the first official release from Dre's long-in-the-works Detox album. It could be a big night for the former N.W.A. member personally as well, as he's got a hand in Em's Album of the Year nomination thanks to his work on the Detroit MC's comeback smash, Recovery. Eminem's set also will feature a cameo from Maroon 5's Adam Levine.

The other legend slated to perform is 10-time Grammy winner and Recording Academy Lifetime Achievement Award recipient Bob Dylan, who will collaborate with Best New Artist nominees Mumford & Sons along with folk rockers the Avett Brothers in what's been described as a "salute to acoustic music."

A number of additional Grammy presenters also were announced on Thursday, including Jennifer Lopez and Ryan Seacrest of "American Idol," Eva Longoria, Zac Brown, Ricky Martin, Matthew Morrison, Jason Segel, Keith Urban, will.i.am and Green Bay Packers linebacker Clay Matthews. They join a list that already includes Marc Anthony, Jamie Foxx, Jewel, John Mayer, Donnie Wahlberg, Miley Cyrus, Paramore, Neil Patrick Harris, John Legend, Seth Rogen, Selena Gomez, Norah Jones, Nicki Minaj, LL Cool J, Dierks Bentley, Blake Shelton and Kris Kristofferson.

The show also will mark the first live TV appearance for [article id="1657367"]Christina Aguilera since her National Anthem flub[/article] at the Super Bowl. She'll take part an [article id="1657533"]all-star tribute to R&B legend Aretha Franklin[/article] alongside Oscar winner Jennifer Hudson, gospel singer Yolanda Adams, country star Martina McBride and Grammy nominee Florence Welch in a celebration of the Queen of Soul that is expected to open Sunday night's ceremony.

On Wednesday, the broadcast also added a performance from jazz bassist Esperanza Spalding, a Best New Artist nominee who will sing with the members of the Grammy Jazz Ensembles and Grammy Camp.

Kristofferson will introduce a special performance from nominee and

2011 MusiCares Person of the Year Barbra Streisand. Other performers on the show include: Lady Gaga, Katy Perry, Drake and Rihanna, B.o.B, Bruno Mars and Janelle Monáe, Lady Antebellum, and Justin Bieber with Usher and Jaden Smith, as well as Eminem, Arcade Fire, Miranda Lambert, Muse, [article id="1657529"]Cee Lo Green with Gwyneth Paltrow[/article] and the Jim Henson Company Puppets, and [article id="1657203"]Rolling Stones legend Mick Jagger with Raphael Saadiq[/article] in a special tribute to late soul icon Solomon Burke.

MTV News will be all over the Grammys thanks to some help from special guest correspondent [article id="1657203"]Snooki of "Jersey Shore."[/article] For the second year in a row, Snooks will join MTV's Sway on the red carpet at the awards show and, for the first time, the pair will co-anchor MTV News' red-carpet live stream from the event. The pair will be seen live on MTV.com for two hours (6-8 p.m. ET), talking to all the night's big attendees, presenters and performers.

Don't miss "Snooki & Sway: Live From the Grammys," a red-carpet live stream kicking off Sunday at 6 p.m. ET on MTV.com. And stick with us all Grammy night for coverage of the red carpet, the show, the afterparties and beyond!