President Barack Obama has admitted that he does not dye his hair, unlike other world leaders.

Barack Obama, 54, was responding to a Cambodian student who asked him for wise advice.

The president participated in a town hall meeting with Young Southeast Asian Leaders Initiative (YSEALI) attendees at Taylor’s University in Kuala Lumpur, Malaysia November 20, 2015, before attending the ASEAN summit meeting.

Barack Obama entered office in 2009 with dark black hair, however in recent years it has turned markedly more grey.

The color of a president’s hair has been controversial at times, with some leaders keeping secret the fact that they dyed their hair.

Barack Obama told the student: “The first thing I want from young people is to stop calling me old.

“I don’t dye my hair and a lot of world leaders do.

“I won’t say who. But their barbers know, their hairdressers.”

President Ronald Reagan never admitted to dying his jet-black hair, and his barber never spilled the beans, either.

Former German Chancellor Gerhard Schroeder once sued a news agency for claiming that he hued his hair.