I’ve heard from a number of people that the current Broadway production based on Spongebob Squarepants is a real hit among a certain set of adults. Because it focuses on the early years of the series, the younger grown-ups who see it find themselves in a bath of nostalgia.
The Flaming Lips, who do weird things because that’s what they do, have posted a demo of a song that appears in the musical. In fact, it’s the song they contributed to the production.
Cyndi Lauper, Sara Bareilles, John Legend, They Might Be Giants and Steven Tyler are also contributors.