There's one less lonely girl in the world -- Justin Bieber's dad is getting married.
Jeremy Bieber proposed to his longtime girlfriend Chelsea last week in St. Barts. Some friends recorded him popping the question at a scenic overlook. They've been together for a few years -- he's 41 and she's 28 -- and our sources say Justin digs Chelsea ... as does the rest of the family.
Justin was not in St. Barts for the big moment, but you know the wedding singer gig is his to lose.