In the post, the singer-songwriter said he'd initially asked Trump to cease use of the song, but then changed his mind after noticing that "Trump seems to genuinely like Y.M.C.A. and he's having a lot of fun with it."

It's possible that Trump's use of the song has benefited Willis personally as a recently adjudicated writer of the song in a U.S. district court case in 2015.

The musician went so far as to thank Trump for choosing to use the song.

In other words, he's about as principled as Trump.

Money talks.