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Sia is one of Celine Dion's favorite singers. Pictured: Sia at the 2016 Panorama NYC Festival in New York City, on July. 24, 2016. Getty Images/Theo Wargo

Celine Dion might be world famous singer, but even she is a huge fan of “Chandelier” artist Sia.

Just recently, the “My Heart Will Go On” crooner penned a touching tribute to Sia as part of Billboard’s “The New Pioneers” series. In the lengthy piece, Dion gushed over Sia’s talents and her ability to speak to others through the lyrics of her songs. “I not only fell in love with the song and the words, but also with Sia’s absolutely beautiful voice: It’s so powerful – like nothing I had ever heard. I listened to the demo 20 times in a row that day because her words spoke to me and I just couldn’t get enough of her voice,” she wrote.

Meanwhile, Dion also recounted the first time she ever met the “Cheap Thrills” singer. According to People, their first meet up took place during Dion’s appearance in “The Ellen Show” where she performed her 2013 single “Loved Me Back to Life.” The track was co-written by Sia herself.

“She is so genuine, so warm, so funny – I was the one who asked to take a photo with her,” Dion shared.

Wrapping up her tribute, Dion said that she’s excited to find out what’s in store for her good friend in the coming months and years. “She’s the true definition of an artist, one I so deeply admire. I’m one of her biggest fans, and it has been such a joy and honor to get to know her,” she concluded.

In other news, Sia’s Nostalgic for the Present tour is set to kick off in Seattle on Sept. 29. Some of her special guests include “Dance Moms” alum Maddie Ziegler, “Simple Things” singer Miguel and “I’m In Control” artist AlunaGeorge, according to Rolling Stone.