Miller went on to represent Texas in the inaugural Miss America's Outstanding Teen pageant held in Orlando, Florida in August, 2005. In the national pageant, Miller won preliminary awards for evening gown and for her talent performance, a ventriloquism act featuring two talking puppets. After making the initial cut at the final competition, Miller competed in evening gown, sportswear, talent and interview, and at the conclusion of the event was crowned Miss America's Outstanding Teen 2005. Being the first titleholder, she was crowned by reigning Miss America, Deidre Downs.
Miller competed in the second season of America's Got Talent, with her ventriloquist act, Supercalifragilisticexpialadoucous with her two puppets, Abner and Shannon, but was eliminated at the first cut of the second round for her act, And I'm Telling You I'm Not Going with her puppet, Cat. She has performed her multiple characters at the House of Blues in Hollwood, The Planet Hollywood Casino, Universal Studios Orlando, Universal Studios Hollywood, numerous theatres and oprys across America, and the VentHaven Ventriloquist Convention.
Miller graduated in 2006 from West Brook High School in Beaumont, and hopes to be a lawyer. She was a member of the school choir and cheerleading squad.