Christie Brinkley

The actress-and-model was 44 when she had her daughter Sailor Lee, now 24, with her fourth husband Peter Cook, with whom she also has son Jack, 29,

The 69-year-old supermodel - who also has Alexa, 38, with her second spouse Billy Joel - said on her kids forging their own showbiz careers in 2018: “I’m so proud when I get nice feedback about them from others in the industry.”