Madonna played a surprise concert in support of Hillary Clinton at NYC’s Washington Square Park last night. The Queen Of Pop didn’t reveal the location of the show until moments before singing. The Daily News reports that she performed “Express Yourself,” “Rebel Heart,” “Like A Prayer,” and a cover of John Lennon’s “Imagine.” Madonna officially endorsed Clinton back in September, and last night she said that a Clinton presidency would be “about unifying us. It’s about keeping America great. Not making America great.” Check out footage from her performance below.