Mary-Kate and Ashley Olsen, Benji and Joel Madden, Cole and Dylan Sprouse and Tia and Tamera Mowry may be some of the most recognizable twins in Hollywood, but they aren't the only ones.
There are actually quite a few stars who you didn't know had a twin and here are 13 of them:
1. Scarlett Johansson
The actress has a twin brother named Hunter. He appeared alongside his sister in the 1996 film Manny & Lo, but left Hollywood to eventually pursue a career in politics.
2. Ashton Kutcher
Ashton and his brother, Michael, may not look alike but their bond is unbreakable. Earlier this year, the actor dedicated his Robert D. Ray Pillar of Character award to his twin, who was born with cerebral palsy.
The Fast and the Furious actor has a fraternal twin named Paul. Since Paul prefers to remain out of the limelight, Diesel has refrained from talking about him until recently.
4. Alanis Morissette
The singer has a twin brother, Wade, who is 12 minutes older than her. Her song No Pressure Over Cappuccino was written about him.
5. Giovanni Ribisi
You may recognize Ribisi for his role as Phoebe's brother in Friends, but in reality he has a twin sister named Marissa. She's also made a name for herself by acting in various TV shows and movies including The Brady Bunch Movie.