AceShowbiz -

Not only does Beyonce Knowles agree to perform at the 50th Annual Grammy Awards, she also plans it big. The R'n'B diva is teaming up with Tina Turner for the February 10 performance, People.com reported.

The news came after Writers Guild of America announced that they won't picket against the show due to the writers strike. Although not yet confirmed, there are reports that Janet Jackson and Britney Spears will appear on the stage too.

Jackson's dancer Blake McGrath said in an interview with MTV Canada that she will perform on the event which is held at Los Angeles' Staples Center. Meanwhile, there had been sightings of Spears rehearsing at North Hollywood's Millenium Dance Studio, leading speculations that she is preparing for her show at the Grammys.

However, a rep for the event said to Nydailynews.com, "We haven't released any presenters or performers, and until we do, nothing is confirmed."

The confirmed act would be Foo Fighters who will perform a song with the winner of My Grammy Moment where an instrumentalist is picked through a contest on YouTube. John Legend will on February 7, also highlight the warm-up of Grammys by performing on air in front of 50 to 60 people who win a series of sweepstakes on the websites of participating CBS stations and affiliates.

WGA spokesman, Neal Sacharow, said on Monday, January 21 that a decision not to picket against the Grammys was made during a union board meeting, but he refused to reveal the reason.