Following the killing of 49 people at a gay club in Orlando over the weekend, Elton John and Paul McCartney have joined the long list of artists who've paid tribute to the victims over the past few days.

Performing in London last night, John told the audience, "When a horror like this massacre in Orlando comes along, great agony crashes across the world like a tsunami. And great grief. We feel shocked, angry and feel devastated inside for the victims and the loved ones who are mourning them."

According to Billboard, he commented on the Love and Bravery project he's involved with as well, and "having love to accept everyone for who they are. Especially people who are different from you and the bravery to show it."

John also acknowledged the landmarks around the world that paid tribute to the victims with rainbows. "What I find extraordinary, and what really gives me strength and hope, is that immediately behind that devastation came a different wave," he noted. "A rainbow colored wave of love, from Istanbul to Tel Aviv, from Sydney Opera House to the Eiffel Tower to the Empire State Building and the White House ... So tonight, while I would like to honor and mourn the LGBT community's loss in Orlando and the loss of everyone who has been a victim of hate and stigma and dogma, I would like to say tonight we are winning the fight against prejudice. The rainbow around the world tells me we can and we will win against these people."

Meanwhile, McCartney draped himself in a rainbow-hued flag and wrote "We stand together with Orlando" on his Twitter page.

Omar Mateen entered the Pulse nightclub early Sunday morning and began shooting patrons. In addition to the 49 deaths, more than 50 others were injured in what is being called the deadliest mass shooting in modern U.S. history. While no motive has been given for the killing spree, speculation has focused on the club's gay clientele.

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