Credit: Frazer Harrison/Getty Images Photo: Kim and Khloe Kardashian with Kris Jenner — March 2, 2013

The Kardashian sisters — Kim, Khloe, and Kourtney — and mom Kris Jenner have pledged their support to end the War on Drugs, signing an open letter to President Obama written by Def Jam pioneer Russell Simmons and professor Dr. Boyce Watkins.

The letter begs the President to lead the way in rethinking how drug crimes are punished, since the enforcement-only "War on Drugs" method often gives offenders jail time instead of other productive methods of rehabilitation — overcrowding the jails with those who have committed non-violent crimes.

Hundreds of other notables have put their John Hancock on the letter — including academics, activists, faith leaders, business leaders, elected officials, media personalities, designers, actors, and musicians.

The Kardashians join other Hollywood stars like Jon Hamm, Scarlett Johannson, Susan Sarandon, Will and Jada Pinkett Smith, Michael Moore, and Jim Carrey — oh, and Khloe's hubby, Lamar Odom!

Who would have thought the Kardashians could help end a war?