Listen To Ariana Grande & Justin Timberlake On New Song 'They Don't Know'

New York, NY (Top40 Charts) The Trolls soundtrack is out now and it is going to be an all-star affair upon its release (September 23). Ariana Grande has teamed up with Justin Timberlake for new track 'They Don't Know', and it's quite the lovely bouncy pop bop.

JT wrote the song for the newly-released Trolls soundtrack, as well as contributing backing vocals to Ariana's flawless performance.

"When we in the clubs," she sings. "We �bout to let 'em know who's your girl / So put your hand in my hand / It's you and me, it's us against the world."

'They Don�t Know' also arrives along with some career news. Ariana Grande has reunited with former manager Scooter Braun after parting ways in February. The song's concept rings a bit true for Grande, who confirmed that she�s dating Mac Miller.



In addition to Ariana's song and Timberlake�s chart-topping hit 'Can't Stop the Feeling!' the Trolls soundtrack features contributions from Gwen Stefani, Anna Kendrick, and Zooey Deschanel.