We can't imagine our lives without our siblings even though they may drive us nuts. When it comes to romantic or sibling love, celebrities often stick together. Therefore, a lot of the time we see our favourite singer or actor hanging out with another famous somebody. However, no one's closer than family.
Here are some celebrities with their siblings. Unlike their closest relatives, you probably wouldn't even recognise them if you passed them on the street.
Celebrities with siblings you may not know about
Mary-Kate and Ashley Olsen with their younger sister Elizabeth
Blake Lively with brother Eric
The Baldwin brothers
Cameron Diaz with her sister Chimene
John Cusack with sister Joan
Jared Leto with brother Shannon
Chloe Grace Moretz with brother Trevor Duke-Moretz
Rami Malek and twin brother Sami
Brothers Ralph and Joseph Fiennes
Jude Law with sister Natasha
Penelope Cruz with sister Monica
Nicole Kidman with sister Antonia
Chris Hemsworth with brothers Liam and Luke
Emma Watson with brother Alex
Elijah Wood with younger sister Hannah
Lady Gaga (Stefani Joanne Angelina Germanotta) with sister Natali Germanotta
Brad Pitt with brother Doug
Maissie Williams with brother
Eddie Redmayne with younger brother Tom
Ashton Kutcher with twin brother Michael