Selena Gomez was discovered at a Disney open call in the summer of 2004.
Creative Commons
It’s that time of year again for Disney Channel and Disney XD to hold the first official open casting call of 2012, this one in Kansas City, Missouri. Casting directors are seeking boys and girls between the ages of 10 – 18 (or who look like they are 10 – 18) and are interested in acting, dancing, or singing. The purpose of these open casting calls is to discover talented young actors to be considered for upcoming original movies and series produced for Disney Channel and Disney XD.
Details Here:
Worldwide Casting Calls 