Today is a big day for Peyton and Spencer List: it's their 18th birthday! These twins have been acting since they were kids and they've always had each other to lean on through it all. They've had tons of super cute red carpet appearances together, and of course have perfected their bother/sister selfie fame over the years. Their twinning moments are seriously so perfect!
In honor of their big day, click through the gallery to see the best pics we rounded up that show just how precious their twin bond is. Don't forget to leave them a birthday shout-out in the comments section below!