Adele is sharing her gratitude for Celine Dion, who surprised the “Rolling in the Deep” singer by attending one of her Las Vegas residency shows at Colosseum at Caesars Palace on Saturday (Oct. 26).

Alongside an emotional photo of the duo embracing at the concert, Adele took to social media to share a sweet note. “I have been performing in Celine Dion’s room at the Colosseum for almost 2 years now. 4 weeks to go,” she began. “It was the only venue I wanted to play in Vegas because it was built for her. I have a picture of her right next to the stage that I touch every night before I walk on and she came to the show this weekend and it was a surprise and it was a MOMENT!!”

Dion — who opened the Colosseum with her first residency in 2003 — was seated beside her sons, Nelson and Eddy Angélil, in a side box at the venue. In a fan-captured video posted to X, Adele noticed her while she was performing “When We Were Young” and began to cry. The legendary Canadian singer is seen holding Adele’s face and kissing her hand, before Adele waved to nearby fans and returned to the stage.

“Celine I love you so very very much,” Adele continued in her note. “Words will never sum up what you mean to me, or what you coming to my show means, let alone how it felt seeing you back in your palace with your beautiful family. I have loved being there it has been such an honor and Saturday night will be something I remember forever and ever. Such a full circle moment for me to be there with you.”

See the full note here.