Despite the fact that they both have the same manager and are under the same label, Ariana and Justin don't like each other in fact, they hate each other. Although the two pop-stars can't stand one another, Scooter thinks it's a good idea for them to do a duet. Ariana thinks Justin is just bad kid that gets into a lot of shit, definite trouble. Justin thinks Ariana was just handed her career and that Scooter spends all of his time promoting her. What happens when Ariana and Justin get locked inside the studio for one night?