The two-night run at Red Rocks, which he dubs "Day of the Deadmau5," is an annual tradition for the EDM artist, who got his start in the late ’90s.
Take a look at photos from his day-one set below:

Before the show, deadmau5 came out and fooled the audience while wearing a ghost costume.
Jacqueline Collins

Zimmerman also visited his pop-up shop in Denver before the shows on November 3 and 4.
Jacqueline Collins

“There’s some mainstays, some thematic things I do with the universe,” Zimmerman told us ahead of the show.
Jacqueline Collins