Michelle Obama: Hey Girls, Check Out My Street Cred!

Michelle Obama celebrated International Women's Day by busting out a can of spray paint and going to town ...

The First Lady went tagging with famous street artist Mr. Brainwash ... tagging a wall in D.C. with a bunch of hearts in honor of her Let Girls Learn movement for adolescent girls.

Mr. Brainwash and his friend, Josh Rabbany, put together the event with the White House, and even got Michelle to leave her Jane Hancock on the wall. The can of spray paint in her hand might make her street, but her dress was still couture.

Best dressed tagger, ever.