I just discovered The Bar & Grill Singers, an Austin, Texas-based musical revue of attorneys. My favorite song is "Appointed Forever."
There's more at the group's YouTube channel and on the group's CD, Grilling Me Softly (iTunes, Amazon).
Big thanks to Sai, president of Fiat Fiendum, who first, via FOI-L, pointed me to the also excellent "I'm Billing Time."