A lot of us will know first hand just how much of a tangled web the average family tree can become, and sometimes this means secret siblings can spring out from nowhere and surprise unknowing adults with a shocking Facebook message.
Being a high profile celeb doesn't make you immune from stumbling across these previously unknown family members, and here is a short list of stars who have discovered they have secret siblings later in life.
Miley Cyrus and Christopher Cody Cyrus
Miley Cyrus has plenty of brothers and sisters who are as firmly in the public eye as she is, but she has one half-sibling who doesn't share the family's space in the spotlight.
Cody Cyrus is just a few months older than Miley and was born in April 1992 to a waitress who had a relationship with Miley's father, Billy-Rae Cyrus, before he met his current wife Tishe.
The last time Christopher was interviewed, he was working in an electronics store. You can read more about him HERE.
Beyoncé And Nixon And Koi
We all know about Beyoncé's younger sister Solange (especially after the Met Gala, AMIRITE?!), but the megastar also has two adorable, and much younger half-siblings by her father, Mathew Knowles.
The two adorable kids were born to two different mother's, but they have both taken paternity tests that confirm they are the offspring of Beyoncé's former manager, the now estranged Mathew.
Although many tabloid stories tried to somehow bring Mathew's behavior back on Bey, Nixon's mother Alexsandra Wright said:
'let me say for the record, it's not [Beyoncé's] fault.
"let me say for the record, it's not [Beyoncé's] fault. I've never blamed her. I want the best for her."
Demi Lovato was estranged from her late biological father for most of her life and it wasn't until much later on that she discovered she had a secret older half-sister.
Lovato was thrilled to find a new family member though and in 2013 she appeared on WBLI and excitedly revealed the news:
"'I think my fans would be excited to learn that I just got to know I have an older sister that I've never known my whole life.
'I actually have a third sister that I didn't even know about until this year. She's in her thirties.
She's my half-sister, but I talked to her for the first time in my life when I turned 20.
'I asked her "Why haven't you ever contacted me?" and she said 'I never wanted you to think that I ever wanted anything from you, so I've just kind of been waiting to see if you wanted a relationship.' I thought that was so incredible."
Oprah revealed that she had a half-sister named Patricia in 2011 and the circumstances of their separation are particularly tragic.
In 1963, Oprah's mother had a baby when Oprah was 9 years old and give it away for adoption because she was too poor to raise two children. Oprah was living with her father when the baby was born so she was none the wiser until much later in life.
Winfrey has since bought her sister a $500,000 house and given her a monthly allowance so she can go to college and meet her true potential in life.
In 2008 it was revealed that Lindsay's father, Michael Lohan had fathered a child during a break with his wife Dina Lohan.
Ashley Horne became famous when she had plastic surgery to look more like her famous older sister and appeared in an interview with In Touch magazine where she said:
I've gotten rhinoplasty, a bit of refinement underneath my cheeks and jawline, some fat injected into my chin and some fat injected into my upper cheeks. I’m hotter than Lindsay! I have no problem saying that."
Lindsay also has two younger half-brothers by her father named Landon Major Lohan and Logan Major Lohan, but Lohan and his new wife, Kate Major Lohan, lost custody of the children in November 2015.
What would you do if you found out you were a celeb's half-sibling?
(Source: In Touch)