Music's most star-studded night of the year has gotten the green light to be itself.

Rihanna

The Writers Guild of America West has granted an interim agreement for the 50th annual Grammy Awards, letting the Feb. 10 telecast proceed with WGA writers. The guild endorsement also allows Screen Actors Guild (SGA) members--who were expected to show solidarity with the writers by skipping the ceremony--to attend. Artists who are also SGA members include 50 Cent, Justin Timberlake, and Common.

"The Recording Academy is gratified by the WGA's decision to grant the interim agreement we requested for our milestone 50th Annual Grammy Awards," the Recording Academy said in a statement. "Music fans worldwide can look forward to an amazing lineup of artists and performances on February 10, making our 50th anniversary show one of the most memorable ever."

Carrie Underwood and Beyoncé are slated to perform. Mary J. Blige and Aretha Franklin will share the stage with the Clark Sisters, Israel and New Breed, the Madison Bumblebees, and Trin-I-Tee 5:7 for a gospel segment. Also, Rihanna will be backed by reunited funk group The Time.

As previously reported, the Foo Fighters will perform "The Pretender" with the help of an orchestra partly stocked with winners of the annual "My Grammy Moment" contest. The orchestra will be directed by Led Zeppelin bassist John Paul Jones.

The WGA waiver now gives the Grammy producers the chance to go after all the big-name talent you'd expect from a 50th anniversary show. One ongoing rumor has Michael Jackson making an appearance, given that the show airs just two days before the Feb. 12 release of the 25th anniversary edition of his classic Thriller album.

The event is being held at the Staples Center in Los Angeles and will be broadcast by CBS in HDTV, on XM Satellite Radio via Westwood One Worldwide, and online at Grammy.com. Stay tuned for more performers and presenters.