“Nothing but pure joy”

“When I walked in, I was overwhelmed,” Bublé, 46, recounted to ET Canada ahead of kicking off the U.S. and Canadian legs of his Higher Tour in Georgia on Monday night. “That’s a song I was so proud of and it brings me so much joy. When I heard them doing it, I was like, ‘I get to sing this?’ I was really nervous because it was so unexpected.”