We've been keeping quiet about the secret guest on the Pigeons & Planes stage at Day 1 of ComplexCon, but now all has been revealed. Before Metro Boomin's headline set, Toronto rapper Jazz Cartier came out and delivered a high-intensity performance that ended with the crowd in the palm of his hand.

Jazz Cartier is currently on tour with Post Malone, but we already knew that his performance was going to be wild—when he played our No Ceilings show in New York last year he ended up crowd-surfing. This time, he upped the ante even more, starting mosh pits, walking on the crowd's shoulders, and even climbing up the side of the stage. The audience who weren't already familiar with Jazz Cartier left fully converted, and the rest of us were blown away by another incredible show.

Check out fan-shot footage of the performance below.