Miss North Carolina USA, Kristen Dalton, has won the Miss USA 2009 pageant. Kristen Dalton Wins Miss USA 2009

The 22-year-old aspiring motivational speaker who already held the Miss North Carolina USA title, edged out runner-up Miss California USA Carrie Prejean and Miss Arizona USA Alicia-Monique Blanco.

Contestants from all 50 states and the District of Columbia competed in the live pageant televised from Planet Hollywood Resort & Casino in Las Vegas.

Contestants were judged by their performance in swimsuit and evening gown modeling contests and their responses to a question asked onstage; unlike the rival Miss America pageant, Miss USA contestants do not perform a talent.

The top 15 contestants worked the stage in white string bikinis designed by pop star Jessica Simpson's swimwear line. Rocker Kevin Rudolf performed his song "Let it Rock," followed by The Veronicas, who performed their single "Untouched" as the top 10 beauties showed off their choice of glittering evening gowns.

Miss Dalton's title comes with a year's use of a New York apartment, a public relations team, a two-year scholarship at the New York Film Academy and an undisclosed salary.

She also will go to the Bahamas in August to compete in the Miss Universe pageant, where American beauties haven't been lucky in recent years. Both Miss USA 2008 Crystle Stewart and her predecessor, Rachel Smith, fell on stage during the evening gown competition, becoming accidental YouTube stars.