Songs of Freedom is a four-disc box set containing music by Bob Marley and the Wailers, from Marley's first song "Judge Not", recorded in 1961, to a live version of "Redemption Song", recorded in 1980 at his last concert. The song "Iron Lion Zion" was first released on this compilation, in what is often considered the original mix (although the original is said to not have included the harmony vocals from the I-Threes). The single releases (and subsequent compilation releases) use a remix which was created for the single using modern production, which sounds very different.