Even if it's not National Sibling Day, it's always a good time to honor your loved ones. Obviously, this applies to celebrities too. We're absolutely obsessed with famous celebrity siblings like Miley Cyrus and Noah Cyrus, but some stars have brothers and sisters that you totally didn't know about. For instance, you're definitely aware that Nash Grier and Hayes Grier are related, but are you familiar with their older brother, Will Grier? He's a star football player who recently welcomed his first daughter into the world.
From Demi Lovato to Victoria Justice and Taylor Lautner, the web stars aren't the only celebs who have brothers and sisters you probably don't know about. Some sibs are normal people who eschew the spotlight, while others are budding stars in their own fields. One Pretty Little Liars actress has a younger bro who's a musician and producer in his own right, while another starlet has a sister who looks so different you would never have thought they were related! (Hint: it's the hair color that will throw you off.)
Check out our gallery to see more celebrity siblings you didn't know existed. Which one surprised you the most?
This article was originally published on April 3, 2015.