Michelle Obama Officiates Chicago Wedding

CHICAGO — Most couples expect to be the center of attention at their own wedding. But that can be a tall order when a former first lady oversees the ceremony.

Michelle Obama officiated the nuptials of Stephanie Rivkin and Joel Sircus on Saturday at Chicago's Theater on the Lake. A guest shared video of the ceremony on her Instagram account, which then was posted on the Hollywood gossip site TMZ.

"Holy Moly. That moment when Michelle Obama officiated at your cousan’s [sic] wedding!" read the social media post, which has since been deleted.

But don't think that Obama is spending her post-White House days wandering the country in search of couples to marry off. It helps that Rivkin, a sales account manager in Google's New York City office is the daughter of Chicago Deputy Mayor Robert Rivkin and that her mother, Cindy Moelis, is president of the Pritzker Traubert Foundation, a Chicago charity set up by Penny Pritzker, a commerce secretary under President Barack Obama.

RELATED: Michelle Obama To Kick Off Book Tour In Chicago

The weekend wedding ceremony, though, might have been a way for Michelle Obama to get ready for her upcoming 10-city book tour for her memoir, "Becoming," which is expected in stores next year. The tour's first stop will be Nov. 13 at Chicago's United Center.

More via TMZ

Former first lady Michelle Obama (Photo by Ethan Miller | Getty Images)