“Howlin’ at the Moon” was written by Jim Ratts and John McEuen and recorded by the Wild Jimbos, a group that included Ratts, on a 1991 album. It is not the Hank Williams song of the same name.
The song is a high-spirited number about cutting loose. To howl at the moon is to let go of restraint and care, to give in to a wild, joyful impulse, and the lyric carries that loose, exuberant energy.
The mandolin player Sam Bush made the song the title track of a 1998 album, and his recording became a bluegrass favorite.