Next to parents, siblings are pretty much the best relatives to have. Why? Well, they’re basically built-in friends you have the minute you or they’re born. They usually don’t stay mad at you long. They also help you learn how to deal with other personalities. And they automatically understand your dysfunction or issues because they came from the same family. So don’t forget to wish your brother or sister a happy Siblings Day today. And thank them for always being in your corner, just like these celebrity siblings who always have their brother’s or sister’s back.