Eva Auner performed the Metallica power ballad "Nothing Else Matters" on kalimba, making it sound like a song inside a music box.
Norwegian rocker Leo Moracchioli of Frog Leap Studios used puppets to perform a heavy metal cover of the opening theme from "Fraggle Rock".
Guitarist Andre Antunes performed a distinctive heavy metal soundtrack to a compilation of Gordon Ramsay's tirades on "Hell's Kitchen".
Guitarist André Antunes quite amusingly added a heavy metal soundtrack to the powerful roar of an earnest red howler monkey.
Leo Moracchioli partnered with musician Mary Spender to perform a badass heavy metal cover of the icon Dire Straits song "Sultans of Swing".
Kristina Schiano and Cole Rolland played a lightning-fast, heavy metal cover of Beethoven’s Moonlight Sonata (3rd Movement).
Joe Porter performed the intros from several iconic heavy metal songs on a variety of percussion instruments played in a row.
Guitarist Eric Calderone performed a heavy metal cover of the theme to the classic true crime series "Unsolved Mysteries".
Charles Berthoud hooked up his bass to a synth pedal and proceed to perform a very slap bass-forward heavy metal instrumental.
Musician Andre Antunes performed the recently resurgent and iconic Metallica song "Master of Puppets" in the distinctive style of Muse.