Her father Stephen Baldwin already let the cat out of the bag in a tweet on Saturday.
But on Monday, Justin Bieber himself confirmed he and Hailey Baldwin are engaged, in a tasteful black and white Instagram post of the loved-up couple according to DailyMail.
'My heart is COMPLETELY and FULLY YOURS,' gushed the 24-year-old pop star in the romantic social media gesture that confirmed that the pair have been engaged since Saturday.