The Times They Are A’Changin’ [UPDATED with Bob Dylan at the White House]

"The Times They Are A'Changin'" was written by Bob Dylan in 1963. It was released in 1964 as the title track on Dylan's third album, which was his first with exclusively original songs. He picked up the locution "a'changin'" from the British and Appalachian folk ballads popular at the time; the phrase was not current among his urban audience or even in rural Minnesota, but it certainly struck a chord among millions of American youth. Covers abound, and it has remained popular, if not quite equally prophetic, over the years.

Audio only, alas:

Audio only:

Keb' Mo' (audio only):

UPDATE (music begins at 0:54, but Morgan Freeman's intro is worth watching)