A catchy tune is a type of song that is memorable and easy to sing along to. The crossword solutions for the term 'catchy tune' include JINGLE (6 letters), RAG (3 letters), LILT (4 letters), BOP (3 letters), DITTY (5 letters), and toe-tapper (9 letters). A JINGLE is a short, catchy phrase or melody used in advertising. A RAG is a type of jazz music that originated in the late 19th century. A LILT is a light, cheerful tune. BOP is a style of jazz music that developed in the 1940s. A DITTY is a short, simple song. Finally, a toe-tapper is a lively, upbeat song that encourages people to tap their feet.