Keke Palmer has landed a role in Grease: Live, Fox's upcoming live production of the popular musical, set to air on January 31, 2016. She’ll play the sassy Pink Lady “Marty Maraschino”, alongside Julianne Hough and Vanessa Hudgens. Broadway writers Robert Cary (Anything but Love, Ira & Abby) and Jonathan Tolins (Buyer & Cellar, The Last Sunday In June) will pen the adaptation. Palmer will next be seen in Fox’s comedy horror series Scream Queens, set to debut this fall…