Madonna gave New Yorkers the surprise of a lifetime on Monday night when she serenaded a crowd at Washington Square Park with a special acoustic performance in support of Hillary Clinton.
The singer stood in the center of Washington Square Fountain, surrounded by a group comprised mostly of NYU students who cheered as she performed covers of John Lennon's "Imagine" and Peter, Paul and Mary's "If I Had a Hammer," as well as her own songs "Rebel Heart" and "Like a Prayer."
Madonna amped up the crowd and encouraged everyone to get to the polls on Tuesday to vote, saying, "Vote with your heart, vote with your mind, vote with your spirit, vote with your soul. Save this country, please."
Madge has been supporting Clinton throughout the presidential campaign, from talking about the election while opening for Amy Schumer to stripping down with Katy Perry for the cause.
Watch a snippet of the surprise performance below:
This article originally appeared on Billboard.com.