Sounds like typical Harry.
Rather than slip mom and step-dad an anniversary card on the sly, he broadcast the milestone to everyone at the One Direction show in Manchester and got (of course) a huge reaction.
He said: "I've got to say congratulations to my mother and her husband. It's their one year wedding anniversary today. I love you...and thanks for letting me borrow your womb."
While Harry's mum, Anne Twist, didn't comment directly about Hazza's little joke, she did share an Instagram pic of the crowd at the concert, writing: "Wow ... just wow! Wonderful weekend with F&F rounded off with a little bit of a bop!"