They teamed up for hit track Problem and now Ariana Grande is said to be dating rapper Big Sean.
The pair were seen attending a late night screening of The Purge in LA, with one onlooker saying that they were kissing during the movie and left early.
Big Sean broke up with Glee fiancée Naya Rivera in April, while Grande had been linked with Australian comedy star Jay Brooks.
The duo have also collaborated on a second single called Best Mistake, which is released in the US today.
