(Mandel Ngan/Getty Images)

“No moonwalking. No moonwalking today.”

President Obama at Barnard College’s commencement Monday, turning down a shouted request from an audience member after he waxed nostalgic about his graduation in 1983, when “Sally Ride was the first American woman in space [and] music was all about Michael and the moonwalk.”

Read more: Courting women, Obama gives commencement speech at Barnard College (Election 2012), 5/14/12