FILE - In this Saturday, July 3, 2010 file photo, Missy Elliot performs onstage at the Wireless Festival in Hyde Park, London. Missy Elliott is going to "Work It" at the Super Bowl with Katy Perry. A person familiar with the plans for Sunday's halftime show tells The Associated Press that Grammy winner Elliott is slated to make a surprise appearance during Perry's performance, Thursday, Jan. 29, 2015. (AP Photo/Joel Ryan, File)