What songs or plays or movies etc use the word "merry" in the title?

Interestingly the Christmas Carol 'God rest ye Merry, Gentlemen.' is not about Merry Gentlemen but a greeting from the 19th century. 'God Rest Ye Merry'. was like saying 'Best Wishes' or suchlike and as it was said to some gentlemen it was the equivalent of 'Best Wishes, gentlemen.'