Celebrities And Their Siblings!Elisabeth Olsen is the sister of Mary Kate and Ashley... she's sorta famous though... (Photo Credit: VALERY HACHE/AFP/Getty Images)
Celebrities And Their Siblings!Lisa Roberts Gillan and Julia Roberts(Photo Credit: Stephen Lovekin/Getty Images)
Celebrities And Their Siblings!Michelle Pfeiffer and Dedee Pfeiffer(Photo Credit: Frederick M. Brown/Getty Images)
Celebrities And Their Siblings!Hunter And Scarlett Johansson(Photo Credits: Astrid Stawiarz & Stephen Lovekin/Getty Images)
Celebrities And Their Siblings!Penelope and Monica Cruz(Photo Credit: Carlos Alvarez/Getty Images)
Celebrities And Their Siblings!Miley Cyrus and Brandi Cyrus(Photo Credit: Christopher Polk/Getty Images)
Celebrities And Their Siblings! Lionel Richie, Nicole Richie and Sophia Richie, Nicole's younger sister (Photo Credit: Stephen Shugerman/Getty Images)
Celebrities And Their Siblings!Rihanna with her dad Ronald Fenty and brother Rajad(Photo Credit: Larry Busacca/Getty Images)
Celebrities And Their Siblings!Baby Sister Jazmyn Bieber, father Jeremy Bieber, singer Justin Bieber and mother Pattie Lynn Mallete (Photo Credit: George Pimentel/ Getty Images)
Celebrities And Their Siblings!Gwyneth Paltrow, her mom Blythe Danner and her brother Jake(Photo Credit: Kevin Mazur/Getty Images)
Celebrities And Their Siblings!Victoria Beckham and Louise Adams at the launch(Photo Credit: Dave Hogan/Getty Images)
Celebrities And Their Siblings!John Mayer and his brother Carl Mayer (Photo: Kevin Mazur/Getty Images)
Celebrities And Their Siblings! Tom Cruise's sister Lee Anne DeVette, Tom Cruise and Mary Lee Mapother(Photo Credit: Dimitrios Kambouris/Getty Images)
Celebrities And Their Siblings!Jon Heder and Dan Heder(Photo Credit: Paul Redmond/Getty Images)