They've dropped hints about the true status of their relationship.
But a photo taken of what appears to be rumoured lovebirds Ariana Grande, 21, and Big Sean, 26, kissing at Universal Studios has provided proof the hit-makers are more than just friends.
A photo shared by a fan on Twitter captured the Right There collaborators mid-kiss as they rode the Revenge Of The Mummy alongside a group of screaming thrill-seekers.
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