Ariana Grande has unveiled another track from her new album My Everything, this time featuring the rapping talents on Big Sean.

As well as working with Sean on Iggy Azalea collaboration Problem, the pair have teamed-up again on tune Best Mistake, which tells the story of an on-again, off-again broken relationship.

The pair took to Instagram to post a sneak peek at the song, which sees Ari sing: "Break up / Make up / Total waste of time / Can we please make up our minds / And stop acting like we’re fine. It’s over, boy.”

Sean follows up in another verse, attempting to mend the broken love with: “I guess time’s wasting / Tick-Tocking / Lip-Locking / How can we keep the feelings fresh / How do we Zip-lock it.”

Following her split from The Janoskains star Jai Brooks and Sean's break-up from Glee actress Naya Rivera, the insider revealed: "They have been friends since they made the song together.

"They have been spending more time together and recently have been getting very close. They are both doing great."

A eyewitness also told E! that Grande and Sean were seen kissing during a late night showing of The Purge at The Grove in LA - with the rumoured couple leaving before the flick finished.

When quizzed about the romance rumours, Big Sean's rep had no comment on the matter, while Grande's spokesperson has yet to respond.