Madonna Performs at Surprise New York Rally for Hillary Clinton Hours Before the Election

Madonna performs a surprise concert at Washington Square Park in support of Hillary Clinton on November 7, 2016 in New York City. James Devaney/GC Images

A ray of light in a dark election. Madonna performed at a surprise rally at New York’s Washington Square Park in support of Hillary Clinton on Monday, November 7, just hours before the voting polls opened.

The Queen of Pop, 58, belted out some of her greatest hits during a 30-minute set. An onlooker tells Us Weekly that she sang songs like "Don't Tell Me," "Express Yourself" and an acoustic version of "Like a Prayer."

The multi-Grammy winner wore a patriotic-themed winter hat as she encouraged the audience to vote for the Democratic nominee, 69. She also took a jab at Donald Trump's "Make America Great Again" campaign slogan.

Madonna performs at Washington Square Park on November 7, 2016, in New York City. Alo Ceballos/GC Images

"This is a concert that is about unifying us, and it's about keeping America great, not making America great again," she said, via the Associated Press. "Tomorrow we're going to keep America great. We're going to elect a president that does not discriminate."

"New York! Tomorrow is the big day. Are you listening? Do we want Donald trump to be president?" she added.

"No!" the crowd screamed back.

Madonna perfrorms a surprise concert at Washington Square Park in support of Hillary Clinton on November 7, 2016, in New York City. James Devaney/GC Images

"Do we need Hillary Clinton?" she asked.

The attendees shouted, "Yes!"

Madonna officially endorsed the former secretary of state in September. At the time, she posted a photo of Trump's eldest sons, Donald Jr. and Eric Trump., holding up a dead leopard.

"How Big of. P—sy Do you have to BE to kill this Noble Animal for sport? Just ask Donald Trump Jr and his brother Eric," she captioned an Instagram pic. "One more reason to vote for Hilary!"

Clinton has been backed by many other celebrities too. On Monday, she was joined by Lady Gaga and Jon Bon Jovi for her final rally in Raleigh, North Carolina.

"She stood with pride as she was shamed by her opponent, whose angry, divisive approach to campaigning divided our entire country," Lady Gaga said at the event. "There are people around the world who think that this election is a joke, but you know what isn't a joke is your vote."

Springsteen, who previously called Trump a "moron" to Rolling Stone, said that the mogul is "going down" on Tuesday.

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