India, July 7 -- Hollywood Jason Momoa didn't just host Black Sabbath's Back to the Beginning concert - he unleashed utter chaos in the best possible way. While metal giants Pantera tore through a blistering medley of Cowboys From Hell and Walk, the Aquaman star took it upon himself to elevate the energy even further.

As the band launched into the opening riff of Cowboys From Hell, the Aquaman star jumped down from the stage, vaulted over the barricade, and dove headfirst into the sea of fans, igniting a swirling circle pit right near the front lines.

Watch the video here:

The surprise move wasn't just a rockstar-worthy gesture - it quickly became the most talked-about moment from a night already packed with legendary highlights. Held ...