A Jolly Good Fellow

"For He's a Jolly Good Fellow" is a popular song that is sung to congratulate a person on a significant event, such as a promotion, a birthday, a wedding (or playing a major part in a wedding), a retirement, a wedding anniversary, the birth of a child, or the winning of a championship sporting event. The melody originates from the French song "Malbrough s'en va-t-en guerre" ("Marlborough Has Left for the War").