On July 17, several birthday party photos were shared on William's Instagram with the caption, "I successfully completed my first birthday party during the weekend~~. It was an extra happy birthday because my dongsaeng Dding-dong was with me.. I appreciate everyone who came."
As you can see, William looks extremely happy and excited dressed in hanbok for the special day. You can also spot William's grandma who flew all the way over from Australia.
Meanwhile, Sam Hammington's family recently announced that baby #2 is on the way.