Justin Bieber shares family photo of handsome great-grandfather -- See the resemblance!

Justin Bieber: I Flaunt My Calvins

So that's where he gets it!

Justin Bieber proved that good looks run in the family on Wednesday when he posted a black-and-white snap of his "swaggin" great-grandfather on Instagram.

Like his famous great-grandson, Bieber's dapper ancestor clearly had serious style -- he rocked a herringbone suit for the headshot. Even more striking is his resemblance to the 21-year-old pop star, particularly in the eyes and the chin.

Bieber has also been busy "swaggin" in front of the camera. The "Sorry" singer recently posted a photo from his most recent Calvin Klein campaign, in which he "flaunts" his fit physique in nothing but a pair of black boxer briefs.

With sharp looks like these, we wouldn't mind flipping through more of the Bieber family photo album!

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Justin Bieber shares family photo of handsome great-grandfather -- See the resemblance!
Canadian pop megastar Justin Bieber (C) plays basketball with a young survivor of Super Typhoon Haiyan in Palo, Leyte province on December 10, 2013. Pop megastar Justin Bieber sang to and played basketball with young survivors of the Philippines' deadliest typhoon on December 10 after he flew into the disaster zone to boost an international relief effort. AFP PHOTO (Photo credit should read STR/AFP/Getty Images)
LOS ANGELES, CA - JULY 27: The winner of Champ of Charity singer Justin Bieber (L) and singer Cody Simpson onstage at the 2014 Young Hollywood Awards brought to you by Samsung Galaxy at The Wiltern on July 27, 2014 in Los Angeles, California. The Young Hollywood Awards will air on Monday, July 28 8/7c on The CW. (Photo by Frederick M. Brown/Getty Images for Variety)
The "Baby" singer headed straight to the salon for a new makeover ... this time going blonde! (Instagram)
LOS ANGELES, CA - AUGUST 23: Justin Bieber attends a VMA Pre-Party hosted by Chris Brown & Pia Mia featuring Bera on August 23, 2014 in Los Angeles, California. (Photo by Araya Diaz/Getty Images)
NEW YORK, NY - JAN 17: General view of a Justin Bieber for Calvin Klein Billboard located on Houston Street on January 17, 2015 in New York City. (Photo by Tomas/IMAGES/Getty Images)
LAS VEGAS, NV - MARCH 15: Singer Justin Bieber arrives at Omnia Nightclub at Caesars Palace to celebrate his birthday on the nightclub's opening weekend on March 15, 2015 in Las Vegas, Nevada. (Photo by Gabe Ginsberg/Getty Images)
CANNES, FRANCE - NOVEMBER 07: Singer Justin Bieber attends the 17th NRJ Music Awards ceremony at Palais des Festivals on November 7, 2015 in Cannes, France. (Photo by Marc Piasecki/WireImage)
LOS ANGELES, CA - JANUARY 18: Justin Bieber and Corey Gamble are seen in Beverly Hills, Ca on January 18, 2016 in Los Angeles, California. (Photo by Light Brigade/Bauer-Griffin/GC Images)

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