John Hetlinger, an 82-year-old man from Broomfield, CO, was a contestant on America’s Got Talent and shocked the nation.

Hetlinger, a very unassuming man who is a retired aerospace engineer, bursted out with an unexpected cover of Bodies by the band Drowning Pool and looked a man possessed.

The crowd went wild, the judges had mixed emotions from bewilderment to amusement, and I was left hoping that I’ll be that badass when I’m 82.