Michael John McKean (born October 17, 1947) is an American actor, comedian, writer, composer and musician well known for his portrayal of Squiggy's friend, Leonard "Lenny" Kosnowski, on the sitcom
Laverne & Shirley; and for his work in the
Christopher Guest ensemble films, particularly as
David St. Hubbins, the lead vocalist and rhythm guitarist of the fictional rock band
Spinal Tap from the film
This Is Spinal Tap. He co-wrote
A Mighty Wind, which won the
Grammy for "Best Song Written for a Motion Picture, Television or Other Visual Media", as well as
A Kiss at the End of the Rainbow which was nominated for the
Academy Award for Best Song.