This acoustic ballad is the biggest departure from Machine Head's normal sound on Unto The Locust. Guitarist Phil Demmel commented to Sonic Excess magazine: "All of my friends that aren't kind of into metal say, 'Damn, is that you guys?' It's a beautiful, beautiful song. Still heavy, but us growing as musicians. It has my favorite, the best solo I've ever done for this band, so far, dripping with emotion. I'll leave it at that."
"(What's So Funny 'Bout) Peace, Love, and Understanding" was written by Nick Lowe in 1974. The original version with his group Brinsley Schwarz was kind of somber, but Elvis Costello made it a classic with his 1978 uptempo take.
His keyboard work helped define the Muscle Shoals sound and make him an integral part of many Neil Young recordings. Spooner is also an accomplished songwriter, whose hits include "I'm Your Puppet" and "Cry Like A Baby."