Although rumors claim that Beyonce would be boycotting the Grammy’s due to the Writers strike, Mathew Knowles released a statement last week saying “We have an incredible Beyonce performance that will be announced soon.” However the news leaked earlier than expected. People magazine and the New York Daily News cited sources yesterday claiming the 26-year-old will perform a duet with Tina Turner. We asked a Grammys rep if this information was true, but they said that haven’t released any presenters or performers yet.  On a side note, Writers Guild of America announced it will not picket the awards show, which allows celebs to attend the Feb. 10 ceremony in Los Angeles guilt-free.