AceShowbiz -

Justin Bieber apparently agrees that the U.S. government needs to revise their drug laws because what they do now is not much help for drug users. The teen Canadian singer joins Will Smith, Scarlett Johansson and Cameron Diaz and many more celebrities to urge President Obama to implement "more creative criminal justice reform."

"I'm going to always keep encouraging people to move in the right direction," Bieber re-tweets a message written by Russell Simmons who posts an open letter to the President. "Shoutout to @UncleRUSH . gotta support him to #EndTheWarOnDrugs and show that we the youth have a voice. hashtag and support the cause," he adds.

While praising Mr. President for his "commitment to pursue alternatives to the enforcement-only 'War on Drugs' approach and address the increased incarceration rates for non-violent crimes," Simmons urges the commander-in-chief in his letter to "revamp the policies of the last 30 years that have seen the prison population skyrocket."

"The greatest victims of the prison industrial complex are our nation's children. Hundreds of thousands of children have lost a parent to long prison sentences for non-violent drug offenses, leaving these children to fend for themselves," he says.

He urges the government to implement "more alternatives to incarceration" and to support "the Youth Prison Reduction through Opportunities, Mentoring, Intervention, Support, and Education (Youth PROMISE) Act."

The letter has been co-signed by Smith, Johansson, Diaz, Jon Hamm, the Kardashian sisters, Kris Jenner, Russell Brand, Susan Sarandon, Tim Robbins, Demi Moore, Mark Wahlberg, Eva Longoria, Woody Harrelson, Jamie Foxx, Jim Carrey and Kerry Washington.