My Little Buttercup

Usually I just write bout the morning songs stuck in my head but this song came to me in the middle of the day and seems from beyond left field. So it is worth noting.

DSSIMH (Day Song Stuck In My Head):
My Little Buttercup - by ¡Three Amigos! (Martin Short, Chery Chase, Steve Martin)
I haven't seen this movie is YEARS and I actually had to Google "My Little Buttercup" to find out what the song was.