The children born in go through the usually channel. Disney and partners.
Hybrids need to use the blood sacrifice.
Found/scouted are put forth at a meeting held I believe once or twice a year. An individual is selected. They are approached and SLOWLY trained and tested for loyalty.
Born in- Britney Spears, Christina Aguilera, Justin Timberlake, Ryan Gosling etc
Hybrid- John Travolta, Amy Wine house
Choosen- Beyonce, lady gaga, Madonna, tyra banks