It finally happened. The 82-year-old hero who made the whole world fall in love with him when he performed metal classic 'Bodies' by Drowning Pool on America's Got Talent made another dream come true, when he got to sing it live on stage with the band themselves. Check it out below.

Last month, retired aerospace engineer, naval pilot and former programme manager repairing the Hubble Telescope John Hetlinger became a global viral sensation when he barked his way through the epic rock track on the reality TV talent show with what he described as 'the highlight of my life and many careers'. 

Well, it looks like he may now have topped that. Mr Hetlinger this weekend put on one hell of a show and staggering performance when he took to the stage with Drowning Pool at Chicago’s Open Air Music Festival. It's just awesome.

Frontman Jasen Moreno better watch out - he may well be about to get replaced.