Last night, before a Believe Tour stop in Tampa, Florida, Grande posted a snap on Twitter of the tourmates getting cuddly. Bieber gives "The Way" singer a kiss on the cheek while she looks innocently into the camera with her signature smirk.
"@justinbieber you're crazy and nonna says thank you, she loves you," Ariana wrote on Thursday, with a flurry of tweets from fans swirling around her photo in the hours that followed.
She quickly responded to relationship rumors: "Everyone, girls are allowed to be friends with guys. I'm a lady. Chill out."
Ariana is currently on tour with Bieber, with one date left to go on August 10. After that, she's going on her own trek for the Listening Sessions for the rest of the month.
Justin had met Grande's grandparents, and he asked her to post the photo of them, writing, "@ArianaGrande post that pic and tell your grandma she is a cutie."
Fans still might be a little confused why Grande's grandma has a thing for Biebs, but the snuggly photo that followed caused even more jaws to drop. But actually, fans were really into the pairing.
"PLEASE TELL ME THIS ISNT THE CUTEST PICTURE EVER ❤," wrote one excited fan.
But mostly, fan reaction was just one large bowl of alphabet soup. Fans had a hard time forming words after seeing the photo, writing a bunch of jumbled letters. In ALL CAPS, of course.
"ASDFFG I CAN'T EVEN SFSJA, " said @avonskidrauhl58. "WE GOT A PICTUEE OMFG AAHSHSADN," wrote @canadabiebers. "IUHFEHJR HOLU FUHCWI CNAT," said @daisyjdb. "OHMYGOD AJKLDJFLAKSDHJFLAKJSD," @WooohBieber said.
What do you think of the photo? Tweet @MTVNews with your reaction!