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IRVINE, CA - MAY 09: Kendall Jenner and Kylie Jenner attend 102.7 KIIS-FM's Wango Tango at Verizon Wireless Amphitheater on May 9, 2009 in Irvine, California. (Photo by Jason LaVeris/FilmMagic)

IRVINE, CA - MAY 09:  Kendall Jenner and Kylie Jenner attend 102.7 KIIS-FM's Wango Tango at Verizon Wireless Amphitheater on May 9, 2009 in Irvine, California.  (Photo by Jason LaVeris/FilmMagic)

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LOS ANGELES, CA - NOVEMBER 22: Model Kendall Jenner (L) and tv personality Kylie Jenner attend the 2015 American Music Awards at Microsoft Theater on November 22, 2015 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)

LOS ANGELES, CA - NOVEMBER 22:  Model Kendall Jenner (L) and tv personality Kylie Jenner attend the 2015 American Music Awards at Microsoft Theater on November 22, 2015 in Los Angeles, California.  (Photo by Jason Merritt/Getty Images)