She first came to public attention at the age of fourteen, in 1982, as a vocalist on her father’s hit single “Valley Girl”. The song featured Moon Unit Zappa delivering a monologue in ‘val-speak’, a collection of slang terms popular in the San Fernando Valley, Los Angeles. In the mid-80s, Moon and her brother were frequent guest VJs on MTV. Next to “Dancin’ Fool”, “Valley Girl” was Frank Zappa’s biggest hit in the United States, and popularized phrases such as “grody to the max” and “gag me with a spoon”. Zappa’s 1982 album Ship Arriving Too Late to Save a Drowning Witch.