The crossword solutions for the term 'FRIVOLOUS GAL OF SONG' are SAL, which stands for singer and actress Selena Gomez. Selena Gomez is an American singer, songwriter, actress, and television producer who began her career as a child actress in the early 2000s. She has since gone on to become one of the most successful singers in the world, with her music topping the charts in multiple countries. She is also known for her philanthropic work, having donated millions of dollars to various charities.