Michelle Obama helps a Chicago couple say 'I do' by officiating at the wedding

In between selling out arenas for her highly-anticipated book tour, Michelle Obama had time to officiate a wedding.

The former first lady helped Chicago couple  Stephanie Rivkin and Joel Sircus say "I do" Saturday evening at the Theater on the Lake.

One attendee, Tina Newman, couldn't contain her excitement and shared a video of Obama with the soon-to-be newlyweds at the altar on Instagram. TMZ first published the Instagram story, which has since been deleted.

“Holy Moly,” Newman's post reads, complete with a heart emoji. “That moment when Michelle Obama officiated at your (cousin’s) wedding!”

During the clip, Obama recites vows into a microphone as the blushing bride repeats after her. Obama looked radiant in a long-sleeve black dress, a stark contrast to the white canopy behind her.

After the nuptials, the festivities continued with a lively wedding reception where the couple participated in a Hora chair dance. It's not clear if Obama attended the reception after assisting in the ceremony.

USA TODAY has reached out to Obama's representative for confirmation.

You may be wondering, who's the lucky couple? Well, according to the pair's wedding announcement in The New York Times, the bride is the daughter of Robert S. Rivkin, deputy mayor of Chicago. Rivkin's mother is the president of the Pritzker Traubert Foundation, a Chicago charity launched by Penny Pritzker, who served as a commerce secretary in the Obama administration.

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