Given Hailey has swapped her huge, oval engagement ring for wedding-like diamond bands, many are speculating the famous couple may have eloped.
On Monday, Bieber and Baldwin were spotted out in New York City, kissing and cuddling while they waited for food at Frankel's Delicatessen in Brooklyn.
But it was the lack of Hailey's $500k engagement ring, replaced by a diamond eternity ring and a second thicker gold band that had everyone talking.
On Sunday, Bieber confirmed a wedding was close after photographers asked him what was next. "Getting married," the singer replied, pointing at his bride.
Though the likes of Margot Robbie and Miranda Kerr have proved it's definitely possible to plan a secret celebrity wedding, it's more likely that Baldwin just felt like leaving her huge rock at home for the day.
The new, easier to wear additions are likely also from Bieber, given they've already had a ring shopping spree since arriving home from their Bahamas holiday turned engagement trip.
A source told E!, two weeks ago that Hailey and Justin "want to be married next year. They are having both of their families be very involved in the process and do not want to make a huge deal out of the celebration. It will not be an over-the-top wedding."