The dancing continues on the fast paced summer series that has America moving to a different beat. Dancers at the Las Vegas callback auditions must impress the judges with their moves and rigorous routines in order to advance in the competition. See who struts into the producers' hearts and who trips up in this episode of SO YOU THINK YOU CAN DANCE .

Tonight, the Top 20 dancers - 10 males and 10 females - who survived the Las Vegas callback auditions will compete for viewers' votes for the first time. See who keeps strutting down the path to the championship and who trips up in a special two-hour episode of SO YOU THINK YOU CAN DANCE.