Possible Clues:

• One-named "Hollywood Squares" panelist
• One-named 'Hollywood Squares' panelist
• One-named recurring guest on 'Hollywood Squares'
• One-named Spanish-born actress
• She had 10 appearances on 'The Love Boat'
• Single-named 'Hollywood Squares' regular
• Her albums include 'Cuchi-Cuchi' and 'Olé, Olé'
• One-named singer once married to Xavier Cugat
• "Cuchi-cuchi" celebrity
• Flamboyant flamenco entertainer