The singer was hosting a meet and greet and watched on as Nick Janevski got down on one knee to ask his girlfriend Austin McMillan to marry him.
"Celine was shocked and I was too. She was super sweet and wished us a long and happy marriage like she had with her husband [René Angélil]. Then [she] invited herself to the wedding!"
"What I thought was just going to be a special night seeing my favorite performer turned out to be a night filled with so much happiness, surprise and celebration with everyone we love & even ended with donuts and ice cream so I don't know how it could get better!
"I get to marry the man of my dreams & grow old with my best friend ... God's timing is so perfect. nothing could be better than this!!
"@celinedion is about the only person I wouldn't mind photobombing the pictures of our proposal ...
I'm still floating around in the clouds over here feeling like it's a dream!! My heart is so happy!! what a dream come true (sic)"