Why does America’s Got Talent have international acts—even ones from other Got Talent shows?

One of AGT season 13’s finalists, Zurcaroh, received a golden buzzer from Tyra Banks—and also got one on France’s Got Talent. How is that possible?

from reality blurred https://www.realityblurred.com/realitytv/2018/09/americas-got-talent-international-acts/