Jack & Jack Express Mad Love for Fans After Hamburg Concert

Jack Johnson and Jack Gilinsky sing out to the packed crowd during their concert on Saturday night (April 16) in Hamburg, Germany.

The duo — Jack & Jack — confessed their growing love for their fans after the show.

“We can’t express how much we appreciate each and every one of you guys. You make our dreams come true every day. WE LOVE YOU,” the guys wrote on Twitter.

PHOTOS: Check out the latest pics of Jack & Jack

They added about the show, “HAMBURG YOU WERE INSANE! SOLD OUT SHOW TONIGHT WAS A MADHOUSE!”