Heather Wines/CBSFollowing her sold-out concert in Paris last night, Madonna gave a surprise outdoor performance to honor the victims of the November 13 Paris terrorist attacks. The mini-concert took place at Place De La Republique, the square where a makeshift memorial was created.

Madonna tweeted about her plan, writing, “Im singing some songs in place de la republique. Meet me there now #Paris.”

Video clips taken at the scene show Madonna singing alongside her 10-year-old son David and guitarist Monte Pittman. She sang John Lennon‘s “Imagine,”as well as her own songs “Ghosttown” and “Like a Prayer.”

According to U.K.’s The Guardian, Madonna told the crowd, “Everybody knows why we’re here…we just want to sing a few songs about peace, just to spread love and joy, and to pay our honor and respect to the people who died almost four weeks ago. And to spread light — we all need it.”

In the aftermath of the Paris attacks, Madonna refused to cancel her concert in Stockholm, Sweden, on November 15, telling the crowd she would not let the terrorists win. “They want to shut us up. They want to silence us. And we won’t let them,” she said.

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Singing songs for Peace with David and Monte after my show in Paris! ???? at Place de la Republique ???? ??#rebelheartour @jr

A video posted by Madonna (@madonna) on Dec 9, 2015 at 5:44pm PST