Justin Bieber sent friend Ariana Grande a congratulations Instagram on May 1 after she took home an iHeartRadio Music Award in LA.
Justin has been logging lots of studio time lately with everyone from Lil Wayne, to Madison Beer and Austin Mahone.
And recently posted a pic of himself in the studio with Ariana Grande (photo above) and teased a possible collabo with her.
“congrats @arianagrande on your number 1 song. #arianabieberduet ??” Justin wrote of her #1 iTunes smash “Problem.”.