"Obama’s barber for the past 15 years told Politico in February 2007 that he started noticing the gray hair soon after he entered the Senate in 2005. If he registered a four on a scale of one to 10 at the beginning of the campaign, he is now a six on the gray meter, said Zariff, who goes by only one name and works at the Hyde Park Hair Salon in Chicago.
Yet check out this pic (on the left) from 2002:
Seems like this barber is either a liar or blind. Obama's use of the grey head schtick goes back at least to 2002.