Venerable punk band Bad Religion's cover of Bobby D.'s "It's All Over Now, Baby Blue."
As I mentioned, I lack the words, so I'll let the estimable Sal Nunziato (from whom I learned about it) speak for me:
"You need to hear this one to believe it. The energy is insane. It's a thrasher and still, it doesn't disrespect Bob or The Byrds."Oh, and in case you were wondering, it's from Chimes of Freedom, a brand new 4 CD set of mostly previously unreleased Dylan covers celebrating 50 years of Amnesty International.
You can -- and apparently should -- order it over here.