Continuing the DaVinci's Notebook theme, here's a very 1990s song about liposuction, which is a triumph of rhyming. My favorite is this verse:
If your waist line is a'surgin'
And in need of some reversion
And your overall weight dispersion's
Gettin' on the verge of perversion
I'm encouraging an excursion
To go searchin' for a surgeon
And get your emergency purgin' of the burgeonin' fat emergin' from your chin!