On got talent does anyone know the background music being played when they show singers reminds me a little of Platoon theme?

The background music you're referring to is called "The X Factor" by Hans Zimmer. It was originally composed for the TV series "The X Factor UK" but has since been used in various contexts, including "America's Got Talent". The track features a haunting and majestic melody that creates an atmosphere of suspense and drama, making it a perfect choice for introducing singing performances on talent shows.