Popsugar Celebrity Celebrity Friendships Justin Bieber and Ariana Grande's Cutest Friendship Moments Justin Bieber and Ariana Grande's Cutest Moments Prove They Go Way Back 8 May 2020 by Monica Sisavat Solís View On One Page Photo 1 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Justin Bieber and Ariana Grande at Variety's Power of Youth Event in 2010 Previous Next Start Slideshow Celebrity FriendshipsAriana GrandeJustin Bieber