I don't think we have ever asked ourselves if Metallica ever felt like dancing, but some genius did, and then made it happen. A new musical mashup that mixes Metallica's "Sad But True" with singer Leo Sayer's 1970s disco-R&B hit "You Make Me Feel Like Dancing" could make a good song for cutting a rug. This master piece of editing and mashup comes from leading mashup maker Bill McClintock. Bill really kept it simple for what he calls "You Make Me Feel Like Dancing (You Know It's Sad But True)" by "Leotallica." We think this is one of the best mashups we've heard in a while. Take a listen: