AMSTERDAM — Madonna and 6,000 of her closest friends celebrated World Pride at Amsterdam’s AFAS Live concert hall early Sunday morning. Madonna was indeed going to headline the World Pride Music Festival that Jake Resnicow and Insomniac produced, and I was going to be there. Madonna was scheduled to take the stage at 1:30 a.m., but she is known for being late — she is Madonna and she does what she wants. “On the dance floor I feel so free,” says Madonna in the opening of “I Feel So Free.” I simply lost myself on the dance floor and celebrated an icon who has always stood with my community.