I'm not going to lie, I kinda dig this mashup. The songs actually flow pretty well together. I just wish there were some actual Metallica lyrics in the song but what can you do. If you enjoy the greats, you will enjoy this. Check it out.
Sometimes, two things that nothing in common come together perfectly. Really short chicks always seem to date tall dudes, people dip their fries in their Frosty at Wendy's, and Metallica and Stevie Wonder sound awesome together.