Who is Uncle Stan sung by Grammy and Eminem in 0 1?

Elton john was gay when he sang jazz. At that time, many fans held signs against Eminem's Grammy, because Eminem was a famous homosexual. But in the end, after the performance, the two men shook hands and made a curtain call, which earned Eminem respect. Eminem is still standing on the Grammy stage, giving his middle finger to those who question him. It's really great.