Justin Bieber admitted he was "butting heads" with wife Hailey Bieber's doula when she gave birth to their son, Jack Blues The singer said there was "tension" in the delivery room, and Hailey made him apologize to the doula

A Canadian political source tells PEOPLE that Katy Perry and Justin Trudeau's relationship "is already fairly serious" three months after their first date. The pair were first spotted out together in Montreal in July.