On Tuesday, Bieber's mother Pattie Mallette shared a sweet selfie of herself with Baldwin, 21.
"What a gift!" Mallette, 43, wrote adding a heart-eyed emoji.
In the shot, Baldwin can be seen planting a kiss on Mallette's cheek
"Love you," Baldwin, who secretly married Bieber, 24, at a New York City courthouse in September, commented on the post.
Earlier on Tuesday, the newlyweds were spotted in Los Angeles wearing matching pink ensembles.
Bieber and Baldwin initially eyed a January bash but will likely push to a later month.