Michael Bublé lines up for an autograph—from his sister!

Vancouver singer sensation Michael Bublé showed up at a Word Vancouver event last Sunday.

He was there to support his sister, Brandee Bublé, who was sharing her new children's book Jayde the Jaybird.

"Don't usually wait in line to get autographs," wrote Buble on his Facebook page. "But for my sister @brandeebuble I'd wait forever. Congrats on the new book kiddo ! 

#jaydethejaybird #family #proud"