Edit: source is Pearls Before Swine by Stephan Pastis.

@c_dan4th This is a Pearls Before Swine comic; I went to find the original, to link to it, as I often like to do, but it's behind a paywall. :^p

When I searched for "whose drummer was keith moon pearls before swine", though, Google's helpful AI told me

"Keith Moon was not the drummer for Pearls Before Swine, but for the rock band The Who. The Pearls Before Swine album Familiar Songs featured drummer Billy Mundi, not Keith Moon. "

Thanks, Gemini! /eyeroll

@c_dan4th Amy points out that Gemini could well have *made up* this entire answer; but no, https://en.wikipedia.org/wiki/Pearls_Before_Swine_(band) suggests that there was in fact a band called Pearls Before Swine, Familiar Songs is a real album, and Billy Mundi was the drummer on that album, so.
Pearls Before Swine (band) - Wikipedia