YouTube sensation Austin Mahone. Disney Channel star Debby Ryan. X Factor star Cher Lloyd. From NBC's hit new drama The Blacklist, Megan Boone and Diego Klattenhoff. From Chicago Fire, Taylor Kinney. From the new Michael J Fox Show, Betsy Brandt. Reality TV's Duck Dynasty. Home and cooking expert Sandra Lee. The reigning Miss America. Football greats Joe Namath, Hines Ward, and Bart Oates.