American Idol helped launch Dixon’s career when he made it to the top seven on Season 11.American Idol’s grand finale will be filled with surprise appearances and star-studded performances as the show pays tribute to the past 15 seasons before the final American Idol is crowned. Thursday’s final episode will have all-star performances by former contestants, including Carrie Underwood, Kelly Clarkson, Fantasia, Ruben Studdard, Jordin Sparks, David Cook, Kris Allen, Scotty McCreery, Chris Daughtry, Clark Beckham, Danny Gokey, Diana DeGarmo, Katharine McPhee, Kellie Pickler, Lauren Alaina, Melinda Doolittle, Pia Toscano, and more.
