Justin Bieber is 22 and has an epic birthday party with a bunch of celebs including Kourtney Kardashian, Hailey Baldwin, Diddy, Travis Scott, King Bach. Starring .br Subscribe for more celebrity news! ▻▻ Check Out The Breakdown of All the Selena Gomez, Hailey Baldwin, and Justin Bieber Dating .br Apparently theres no bad blood between Hailey Baldwin, 19, and Kourtney Kardashian, 36…even though theyve both had relationships with Justin Bieber, 21, .br Stephen Baldwin says its wrong to put a label on his daughter Haileys relationship with Justin Bieber, but it doesnt matter . he says Biebs is the best.