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Hilary Duff & Haylie Duff
The close sisters even starred in a movie together, 2006's 'Material Girls.'
Maggie & Jake Gyllenhaal
The talented siblings are close, often photographed together out and about.
Miley Cyrus & Billy Ray Cyrus
The father-daughter team recently hit a rough patch in their relationship when Billy Ray Cyrus was widely criticized for making negative comments about “Hannah Montana” to GQ, the show that made Miley a household name. Things have reportedly gotten better between the two, and in another good sign, Billy Ray also called off his divorce with Miley’s mom Tish Cyrus last March.
Ashlee & Jessica Simpson
It's sometimes hard to believe that Jessica Simpson, the ultimate girly girl, is sisters with the rocking Ashlee Simpson.
Nicolas Cage & Jason Schwartzman
Who knew these two were cousins? Both Jason and Nic are part of the famous Coppola family, both being the nephew of legendary 'Godfather' director Francis Ford Coppola. They can also count director Sofia Coppola as a cousin.
Britney Spears & Jamie Lynn Spears
The sweet Southern sisters both experienced fame at a young age, with Britney starring in "The Mickey Mouse Club" alongside fellow superstars Christina Aguilera, Justin Timberlake and Ryan Gosling, and Jamie Lynn starring in Nickelodeon’s "Zoey 101" alongside "Victorious" star Victoria Justice.
Ashley and Mary-Kate Olsen & Elizabeth Olsen
Many didn't realize that up and coming actress Elizabeth Olsen, who’s making a big splash for her role in 'Martha Marcy May Marlene', can count millionaire moguls Ashley and Mary-Kate Olsen as sisters.
Emma Roberts & Julia Roberts
The fashionable Emma Roberts calls 'Pretty Woman' Julia Roberts her aunt.
Beyonce & Solange Knowles
Besides being a worldwide icon, Beyoncé also plays big sister to singer Solange Knowles.
All in the Family
Success is always sweeter when there's someone to share it with. And who better to share it with than your family, especially when they just happen to be one of the few people in the world who can totally relate? Check out these celebrities, who share both fame and DNA.