Breeders and Les Breastfeeders are both quite good, actually.
The Breeders are Kim Deal, from Pixies, and her twin sister Kelly Deal. They both may indeed be childfree, at least neither has bred that I know of.
Les Breastfeeders are a super fun rock band from Montreal.
"It truly is the one commonality that every designation of humans you can think of has, there's at least one asshole."
--Me