Baldwin, 21, is Stephen Baldwin's daughter and also the niece of Trump impersonator, Alec Baldwin.
Bieber and Baldwin were at a resort's restaurant when two eyewitnesses said they saw Bieber get down on one knee, according to TMZ.
TMZ reported that two women said they were in the restaurant when Bieber's security guards told diners to put their phones and cameras away as "something special was about to happen".
Justin Bieber and Ariana Grande now have four major things in common: They're both highly successful pop stars, they're both in their mid-twenties, they share the same manager Scooter Braun, and they're both engaged to their partners after whirlwind romances.
Why Trump is pressing Saudi Arabia to lower oil prices:…
Tehran blames rising prices on US sanctions imposed on Iran and Venezuela , founding members of the cartel. But U.S. allies aren't on board with Trump's planned sanctions on Iran .
The couple began dating about a month ago and have been inseparable ever since.
Selena Gomez, 25, dated Justin Bieber, 24, off and on for years, but it looks like the Jelena ship has sailed - just like the IRL boat Sel spent her Sunday on. Excited for the next chapter!' Jeremy captioned the shot.
"Anytime he has done this in the past, Selena doesn't even see stories about him in the media", the source added.
Thai boys trapped in cave pen emotional letter to their parents
The notes have triggered a surge of emotion from families, who are facing an agonising wait for a unsafe evacuation. Boys trapped in a Thai cave wrote letters to their parents on Friday, telling them to "be strong" and not to worry.
However, the couple couldn't keep people from snapping pics throughout all of their idyllic vacation and a few fans seemed to catch a glimpse of Baldwin's shiny new sparkler.
CNN and E! News confirmed reports of the engagement, which Bieber's parents also appeared to celebrate online. He's somebody I really cherish. We went through a long period of time where we weren't friends.
Express.co.uk has contacted a representative for comment. Now it's a very mature situation.
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The 33-year-old Ronaldo made most appearances at World Cups and European Championships among all players since his debut in 2004. Uruguay are the only team in the competition yet to concede a goal after their three group games.
"Right now, Justin is very happy with Hailey". If I rush into anything, if I damage her, then it's always gonna be damaged. "I just don't want to hurt her".