Justin is then said to have gotten down on one knee and proposed in front of everyone.
She is the daughter of Stephen Baldwin, the actor and producer who has starred in films like Born on the Fourth of July, The Usual Suspects and The Flintstones in Viva Rock Vegas.
Hailey Baldwin arrives at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 20, 2018, in Las Vegas.
The Biebs' dad, Jeremy Bieber, posted a cryptic Instagram message around the time of the alleged proposal, hinting the whole thing actually did go down. "Excited for the next chapter", he wrote.More news: ZTE taps in-house executive as new CEO
The couple, who dated in 2016 before splitting, had stirred chatter among fans in recent weeks appearing together and sparking speculation that they had reunited. "This might seem sudden, but they know each other very well", the source continued.
In video taken by Instagram user @zoe_nicolee, Bieber is spotted dancing happily to his own song with Luis Fonsi, "Despacito", on the reported night of the engagement.
Baldwin and Bieber have been together for one month, but have had an on and off again relationship for almost four years. "They're good for one another". "But it brought both of us to the realization that we just work much better as friends. We spend a lot of time together", Justin explained in the 2016 article.
Describing their relationship now, she told The Times: "He's somebody I really cherish".