Following a brief romance from December 2015 to January 2016, Baldwin and Bieber began dating again in May 2018.
The American model and Canadian singer announced their engagement a couple of months later, and have now allegedly decided to take the next step by exchanging their vows.
In September this year, CNN reported that the couple had gone to a courthouse in Los Angeles to obtain their wedding licence.
While rumours began to swirl at the time regarding whether or not the couple had wed, both Baldwin and Bieber have now left clues hinting that they have in fact tied the knot.
"My wife is awesome," Bieber wrote in a caption on Instagram yesterday to accompany a photo of the pair holding hands, with Baldwin writing: "That's my babe" in a comment underneath.
In October, TMZ reported that Baldwin had filed to trademark the name "Hailey Bieber", while also claiming that the couple married in a secret ceremony in New York the day that they obtained their marriage licence.
However, in a now-deleted tweet from 14 September, Baldwin stated that she and Bieber hadn't wed at the time.
"I understand where the speculation is coming from, but I'm not married yet!" she tweeted, according to Bustle.
Numerous people on social media have been responding to the news of the couple's alleged nuptials.
"I'm so happy for them," one fan wrote on Twitter, with another writing: "You two are too cute ... I'm glad you found 'your person'," on Instagram.
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