LOS ANGELES, CA - NOVEMBER 22: Singer Celine Dion performs onstage during the 2015 American Music Awards at Microsoft Theater
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On Sunday night at the 2015 American Music Awards, Jared Leto took the stage to share a fond memory of a 30 Seconds to Mars gig at Le Bataclan in Paris. It was an emotional segue into a discussion of the terrorist attack that struck the venue in part of a coordinated series of shootings and explosions on Friday, Nov. 13.

Céline Dion then took the stage to sing Édith Piaf's "Hymne à l'amour" in tribute to the City of Light. She performed the French ballad in front of a series of images depicting Paris at its most beautiful. Dion didn't record an LP sung in English until 1990's Unison, nine years after her teenage debut, La voix du bon Dieu.

In the wake of the attacks on Paris, ColdplayU2Foo FightersDeftones and the Eagles of Death Metal—who were onstage as the chaos erupted—have canceled concerts. Tributes have come from Justin BieberSaturday Night Live, John Oliver's Last Week Tonight and more.