"Overcome with joy and gratitude," Watt said in the post, sharing pictures of his family, including 2-year-old son, Koa Watt.

Justin Bieber is bonding with his toddler son, Jack! “Lil bieber,” the pop superstar captioned a new Instagram slideshow on ...

Justin Bieber posts a black-and-white close-up photo of his baby son Jack on Instagram, whom he shares with wife Hailey Bieber.