(Maddie Ziegler in ‘The Greatest.’ Screenshot via YouTube.)

Sia has released an emotional tribute to the 49 lives lost in the Pulse nightclub shooting in Orlando in the form of the new music video “The Greatest.”

Maddie Ziegler returns to yet another Sia project, the 13-year-old dancer has already appeared in Sia’s videos for “Chandelier,” “Elastic Heart,” “Big Girls Cry” and “Cheap Thrills,” but this time, is joined by 49 other dancers.

The video begins with the hashtag #WeAreYourChildren appearing on a blank screen before Ziegler is seen wiping rainbows across her cheeks. She begins to cry over a group of dancers laying down on the floor. Ziegler then leads the dancers into an energy-filled dance throughout the building.

The end scene shows the dancers suddenly drop to the ground revealing what appears to be bullet holes in the wall behind them.

Kendrick Lamar also contributed to the track although his verse is omitted from the video.

Matt Moseley, a dancer from the video, posted a screenshot from the project with the caption “Humbled to be a part of this video. Thank you @siathisisacting. 49 beautiful lives lost. This is for you. #WeAreYourChildren.”

A photo posted by Matt Moseley (@realmattmoseley) on Sep 5, 2016 at 10:08pm PDT