We've seen Drowning Pool covered by a parrot, Elmo, Macho Man and sock puppets but never by a senior citizen.
82-year-old John Hetlinger, a former Navy pilot and program manager for the instrument that repaired the Hubble Space Telescope, is now retired, so he enjoys a good round of karaoke now and then, and his favorite song to perform is "Bodies." The judges' and audience's reactions are priceless. Watch more funny metal videos.
