Dakota Fanning stuns at the Americans For The Arts event in New York City.
Elle Fanning takes a tip from her big sister and sticks with neutrals at the Louis Vuitton show during Paris Fashion Week.
Aussie hunk and star of "Thor: The Dark World," Chris Hemsworth knows how to mix casual and more professional pieces.
Baby brother Liam Hemsworth looks dashing at a special screening of "The Hunger Games: Catching Fire" in New York.
Elizabeth Olsen looks just like her older sisters as she attends a screening of "Oldboy" in New York in a sleek metallic jacket.
Mary-Kate Olsen rocks loose waves and opts for a hippie-chic dress at the Costume Institute Gala at the Metropolitan Museum of Art.
Ashley Olsen sticks to classic all-black for the opening celebration of Club Monoco's Fifth Avenue Flagship.
Solange Knowles wear 3.1 Philip Lim for Target at the line's launch event in New York.
Even dressed down Beyonce Knowles still looks chic in New York City.
Actress Kate Mara struts her stuff in a revealing gown at the 65th Annual Primetime Emmy Awards.
Sister Rooney Mara also chooses a sheer white dress for the premiere of 'Her'' in Rome.
Kendall Jenner gets edgy in chunky jewelry and leather leggings at the Kendall And Kylie' Fall Collection Preview at PacSun in New York City.
Kylie Jenner goes for a monochromatic look at the American Music Awards.
Kim Kardashian experiments with color blocking in New York City.
Khloe Kardashian pairs chunky jewelry with this classic and casual look in London.
Kourtney Kardashian arrives in a bold patterned dress at the Kardashian Khaos store in Las Vegas, Nevada.
Zooey Deschanel wows the crowd at the 70th Golden Globe Awards.
Emily Deschanel combines her lady-like lace with a bright pink lip at the 65th Primetime Emmy Awards.
Willow Smith arrives in a psychedelic top at the 'The Hunger Games: Catching Fire' LA premiere.
Willow poses with brother Jayden at the 26th annual Nickelodeon's Kids' Choice Awards.
We learn many things from our siblings and our favorite celebrities are no exception. These fashionable families definitely know how to keep high style close to home.
Click through the gallery above to see 2013's most stylish celebrity siblings!