The singer performed "Perfect illusion" at the Ali Forney Center on Friday, reports aceshowbiz.com.
Sitting atop a piano, she strummed her guitar and sang a stripped-down version of her single. Sporting a high ponytail, she wore a T-shirt and jeans along with Converse shoes.
"I'm here today not because I had to excruciatingly pull time out of my schedule to come be here. I'm here because I want to be here. And I'm here because I want this to affect other people around the world, and to remind them that when they are kind, it not only makes the other person feel good, but it makes me feel good too," Gaga said.
Singer Madonna also visited the center. She was joined by her children Mercy and David.
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