Following the swanky red carpet happenings, the celebrity attendees gathered inside with their fashionable (or not so fashionable) garb at the Met Gala. Usually, it's a no-cameras affair, but thanks to Apple, we common folk were able to get in on some of the action happening inside the Metropolitan Museum of Art's walls.

The Weeknd brought out Nas to slow things down and perform a remix of "Tell All Your Friends."

Watch the duo perform below.

[h/t MISS INFO]