12 witnesses spot UFO soaring above Red Rocks Amphitheater hours after concert: ?No mistaking what this was?

A dozen employees at the Red Rocks Amphitheater watched a massive UFO light up the Colorado sky this month, according to the National UFO Reporting Center.

The workers were cleaning up around 1 a.m. June 5 — not long after country music star Ian Munsick took the stage — when they spotted a dark metallic disk appear.

“One of our coworkers suddenly said to us, ‘Hey, what is that over there? It looks like a spaceship,'” the anonymous tipster wrote in their report.