Watch: Wild Fashions at the amfAR Event

Lady Gaga and Cyndi Lauper rocked the red carpet at last night's amfAR Annual New York Gala to kick off Fashion Week, and they explain their wild fashions to ET!

"The artist was so kind tonight to make me a beautiful art piece, the piano, as well as my outfit," Gaga says.

"She's doing an installation piece tonight," adds her red carpet date and fellow MAC spokesperson Cyndi Lauper. "It's a special performance art piece that will not be repeated. It's a very special piece tonight and I'm very proud to introduce her."