CAPP and JOLSON is a reference to the iconic American comedy duo, Al Capp and Jolson Williams. They were best known for their slapstick comedy routines, which often featured physical humor and witty dialogue. They were active in the early 20th century and performed in vaudeville shows, burlesque theaters, and on radio and television. The ALS in the crossword solution stands for Al Capp and Jolson Williams.