"Don't You Know You're Beautiful" is a song written by Chris Lindsey, Aimee Mayo, and Karyn Rochelle (who co-wrote her previous hits "Red High Heels" and "I Wonder"), and recorded by American country music artist Kellie Pickler.

Pickler debuted the song at the 43rd annual Academy of Country Music Awards,[2] and it was officially released to radio in June as the fourth single of her career.

In the first verse, she addresses a fifteen-year-old girl in tattered clothes, telling her "Now I know you'd give anything just to fit in / But your worth ain't on a price tag, it comes from within."

The third verse is addressed to a wife, who was left by her husband, because he preferred a younger woman: "Let him go, let him fly, keep your head up, get on with your life."

In the video, Pickler is seen singing with various women around her in different situations, including at the roller skating rink, a sleepover, and at a children's hospital.