Hollywood actor Jason Momoa surprised fans by getting stuck into the pit amongst the crowd at Black Sabbath's final performance with Ozzy Osbourne on Saturday, 5 July at Villa Park in Birmingham.
The Aquaman star, 45, joined revellers for Pantera's set at the “Back to the Beginning” farewell concert, with footage showing him squeezed in amongst thousands of people.
Momoa previously joined the Texas heavy metal band on stage during their Wembley Arena show back in February.
Fans were delighted by the display, with one commenting: "Jason [is] so real for this, just wanna mosh like everyone else."