American Idol Finale – Top 6 Girls with Gladys KnightPosted on May 24, 2007 by cd // 0 Comments The top six American Idol female finalists performed “I Heard It Through The Grapevine,†and then were joined on stage by Gladys Knight to perform “I Feel A Song In My Heart†and “Midnight Train To Georgia.†American Idol Top 6 Girls with Gladys Knight Video sent by starmometerdotcomRelated