Martina McBride, Carrie Underwood and Kellie Pickler will all appear on American Idol this season. Underwood will sing her current hit, "Wasted," on March 8 during her second performance on the show since winning the competition in 2005. No specific dates have been announced for McBride and Pickler's appearances. McBride is one of nine celebrity coaches who will work with the contestants. She will also perform on the show. In addition, Pickler will return for the first time since she was a finalist last year. All three artists record for the country division of the RCA Label Group.