She shot to global fame at the tender age of 16, with her doe eyes, slender frame and long legs.
Her enormous, heavily-lined eyes and drawn-on lower lashes made her the poster girl for youthful Sixties beauty - so it's safe to say that Twiggy knows a thing or two about makeup application.
The star, 67, has now shared her top makeup application tips for women who want to exude youth without looking like they've tried too hard with FEMAIL - and every lady should take note.
Twiggy, who had to get to grips with her beauty regime from a young age after being scouted at 16, told FEMAIL: "Don't go heavy on the foundation and opt for a brown eye shadow as it's softer. I love a slick of mascara, a light blush on cheeks and natural lipstick.
"Always keep your foundation light and make sure you blend it well."