Possible Clues:

• Title girl in a 1968 hit by the Turtles
• Title girl in a 1968 Turtles hit
• Celebrated beauty releasing hard rock song by the 2s
• Abbott known for her 'Treasure Island' and 'Grimm's Fairy Tales' illustrations
• Illustrator Abbott, known for her work on fairy tales
• 1968 Top 10 hit for the Turtles
• Satirical 1968 hit for the Turtles
• 1968 hit for the Turtles
• The "you" in the 1968 lyric "Gee I think you're swell"
• "You're my pride and joy, et cetera" girl in a Turtles hit