Bryan Cranston didn't just show up to the Electric Daisy Carnival in Las Vegas this weekend ... he brought Walter White along for the ride.
Cranston crashed the EDM festival and introduced the band Above & Beyond ... who just happened to have a song called "Walter White."
The "Breaking Bad" star growled out a few lines before ferociously dancing onstage with the group ... which he mildly regretted the next day. He wrote, "Leaving EDC—Vegas right now. Pulled an all-nighter. Old, my ass...Old, my head. Old, my feet...Happy Father's Day!"