KALAMAZOO -- Kalamazoo native Matt Giraud will be gracing the "American Idol" stage on Thursday, for the first time since he placed fifth in the competition last season.  Giraud and another runner-up will reprise their dueling piano performance of Billy Joel's "Tell Her About It," a fan favorite during the summer "Idol" tour.  Giraud will be returning home to Kalamazoo for an April 21st performance at the Gilmore International Keyboard Festival.