VIDEO : Justin Bieber and Hailey Baldwin Seriously Dating?

Justin Bieber and Hailey Baldwin may have just gone public with their relationship with some PDA on Instagram. Has the 21-year-old singer finally moved on from Selena Gomez and ended his brief affair with Kourtney Kardashian? He performed at Leonardo DiCaprio?s St. Baldwin joins the Biebs and his family, which includes his dad Jeremy Bieber and his younger siblings: While it may not be a couples romantic retreat, joining in on the family vacay is pretty significant and they?ve been sharing photos of their trip all week, including when Biebs flirtatiously gave her a wet willy. I?ve known him for a long time, since I was about 13.