Martina McBride will join the three finalists of this season's American Idol for a July 4 concert in New York City. The event will be televised live on NBC. McBride will open the Macy's Fourth of July Spectacular by singing "Anyway." In addition, 2007 Idol winner Jordin Sparks and fellow contestants Blake Lewis and Melinda Doolittle will perform a patriotic song together. The telecast will be hosted by NBC personalities Natalie Morales and Tiki Barber.