Bet you can't guess which celeb this guy is related to!
A certain stunning A-list star posted this adorable pic with her older brother as they enjoyed a special sibling outing, and if you look closely you may be able to tell the family resemblance. Still not sure who it is? Well, we'll give you some clues.
She has three kids. She's blonde (obviously), and some might even say legally. Plus, she's won a Best Actress Academy Award.
Yup, it's Reese Witherspoon and her bro, John D. Witherspoon!
"Love seeing my brother," the Wild actress posted on Twitter. "He shares my love for doughnuts, and that's how I know we are related." Yum!
Continue to test your trivia, and play our game to see if you can guess more celebrity siblings!