I DONT DYE MY HAIR OTHERS DO - OBAMA

Obama allows first grader Edwin Caleb to touch his hair during a classroom visit at Clarence Tinker Elementary School at MacDill Air Force Base in Tampa, Florida on Sept. 17, 2014. 

Washington (CNN)President Barack Obama says he's letting his hair go gray without dying it -- but his fellow world leaders aren't doing the same.

The President was answering a question at a town hall Friday with the Young Southeast Asian Leaders Initiative at a university in Kuala Lumpur, Malaysia.

He was asked what he wants to see from young people in the future when he gets old -- and took exception.

"Well the first thing I want from young people is to stop calling me old," he laughed. 

Obama, 54, made a joke about how his hair has grayed since he took office in 2009, saying the age has crept into his coif. 

But he said other world leaders aren't all taking the same approach.

"I will tell you I don't dye my hair, and a lot of my fellow leaders do," he said. "I'm just saying. I won't say who -- but their barbers know. Their hairdressers."

Hair has been a recurring topic this presidential election cycle. GOP front-runner Donald Trump had an audience member at an event tug on his mane and help him declare the famous 'do as real -- and also accused Democratic front-runner Hillary Clinton's hair to be fake.

She has assured America her hair is real, but also promised the nation won't watch her go gray in office.

"The hair is real, the color isn't," she said.