Kaley Cuoco has a sister. A hot sister. A hot sister who has made headlines for appearing on The Voice USA and making it through to the next round without her sister's name to act as influence.
That's pretty awesome in our books. And Kaley was there to support and go mental in the adorable way that only Kaley can.
But where has Briana been hiding all this time?
And who else out there is hiding a secret, super-hot sister?
01 Briana Cuoco: Sister of Kaley Cuoco
02 Gemma Styles (centre): Sister of Harry Styles
03 Ellen Thurman (centre) and Laura King (right): Sisters of Mollie King
04 Haylie Duff: Sister of Hilary Duff
05 Sandra Vergara: Sister of Sofia Vergara
08 Poppy Delevigne: Sister of Cara Delevigne
09 Brandi Cyrus: Sister of Miley Cyrus