From a giant floated devoted entirely to his mayoral bid, Weiner asked the crowd if they were from various countries. He received cheers that were barely audible over the horns and sirens from the DJ behind him.
He gets in to it even more as he starts swaying with the music and singing along.
Another parade-goer captured more of his dancing from a different angle.
People took to Twitter to weigh in:
Especially ESPN's Bomani Jones:
But while Weiner may have stole the show, Bill de Blasio and his family deserves honorable mention for introducing us to "The Smackdown."
Jacob Fischler is a political reporter for BuzzFeed News and is based in Washington, D.C.