Every Friday I like to participate in a weekly event deemed "Metal Friday". Metal Friday consists of listening to heavy metal during the work day on Friday. That's it. It's best to keep things simple, especially on Friday. Metal Friday is open to everyone and participating is easy. Just listen to some metal. Today I'm paying tribute to the late Ronnie James Dio who lost his battle with cancer on May 16, 2010. RIP Ronnie. Today Metal Friday lives on in your honor. Click through to watch one of the greatest music videos of all time.