Listen to Chuckie on iHeartRadio | Listen to Slash on iHeartRadio

With approximately 165,000 festival-goers each weekend at this year's Ultra Music Festival in Miami, and tens of millions of people watching the live stream around the world, the main stage is a spectacle and a breeding ground for surprises.

During Chuckie's set on the main stage during weekend 2, he brought a friend out to help him with his performance - Slash. The rock legend gave a stellar guitar performance to his collaboration with Chuckie and Bellatrax called "Rocktronica."

Photo Credit Nicole Mastrogiannis & Instagram