One thing that I think when I watch Scooby-Doo with the kids is "man, they could really use some metal to make this show complete". And what do you know, they went and did just that. Sepultura frontman Derrick Green and ex-Sepultura drummer John Dolabella collaborated on a short song for the ending credits. It's admittedly nothing special as far as the song goes (in fact it almost sounds like their take on Dethklok) but hearing it along with children's programming is nothing short of amusing.