Justin Bieber got up close with Ariana Grande during a surprise appearance

He shocked Ariana Grande fans by hitting the stage for a sultry two part harmony with the star amid her Miami visit stop a month ago.

Also, it would seem that Justin Bieber can't get enough of the spotlight, or his buddy Ariana, as he joined the vocalist for another shock appearance amid her show at The Forum in Inglewood, California on Wednesday.

21-year-old Ariana purchased out her long-lasting companion for a version of her hit Love Me Harder, with Justin tackling the verses initially sung by The Weekend.