Imagine having a brother or sister who was a famous actor... They could totally hook you up with guest starring roles on their TV show! That's exactly what some of your favorite stars have done for their family members. Yep, stars like Miley Cyrus, Demi Lovato, and even Sabrina Carpenter have had their siblings guest star on Hannah Montana, Sonny With a Chance, and Girl Meets World. Did you notice their secret guest spots?
We did some digging around and found out 11 amazing times that your favorite celebrities had their siblings secretly guest star. Click through the gallery for more, then tell us in the comments: Which one surprised you the most?