Frank Zappa was an innovative musician, composer, and bandleader whose influence spanned rock, jazz, and experimental music, while his daughter Moon Zappa became widely recognized for her 1982 hit "Valley Girl," recorded with her father. This lot features a personally hand-signed 7-inch single bearing the autographs of both Frank Zappa and Moon Zappa, making it a desirable dual-signed collectible from one of rock's most distinctive musical families.