What American Idol star's singing competition did BoybandPH win?
BoybandPH:  The group was formed on December 11, 2016, after winning the first season of ABS-CBN's reality show "Pinoy Boyband Superstar", a franchise of Simon Cowell's Latin American singing competition "La Banda". Simon Cowell:  He is most recognised as a judge on the British TV talent competition series "Pop Idol", "The X Factor", and "Britain's Got Talent", and the American TV talent competition shows "American Idol", "The X Factor," and "America's Got Talent".
i don't know