The show features a tiered format wherein dancers trained in a variety of dance genres enter open auditions held in a number of major U. cities to showcase their talents and may move forward through successive additional rounds of auditions to test their ability to adapt to different styles.
These duets, as with all non-solo performances at this stage in the competition, are choreographed by professional choreographers.
Duets and their accompanying video packets and critiques typically take up the majority of a competition show but may also be supplemented by solos or group numbers, each competition show ends with a quick recap of the night's routines accompanied by voting prompts--traditionally by phone, but increasingly through online voting processes.
Performance shows typically last around two hours, commercials included.
It was created by American Idol producers Simon Fuller and Nigel Lythgoe and is produced by 19 Entertainment, Dick Clark Productions, and Conrad Sewell Productions.
The series premiered on July 20, 2005 with over ten million viewers and ended the summer season as the top-rated show on television, the first season was hosted by American news personality Lauren Sánchez.