Justin and Hailey Bieber have welcomed their first baby, but fans have already started to bring the conversation around to his ex-girlfriend Selena Gomez. Justin Bieber’s Baby has got a whole new meaning as the singer just welcomed his first child with his wife, Hailey Bieber. The star confirmed the news on Instagram on August 24, announcing his son’s name as Jack Blues Bieber, and the celebrity couple were quickly flooded with kind messages and congratulations. But for some fans, they took the opportunity to once again bring Justin’s ex, Selena Gomez into the conversation. Selena Gomez brough…