This weekend's double bill sees each coach pair off their ten acts to perform a competitive duet against each other. One from each duo will make the live shows, while the other will be sent home.
Before the sing-offs, each artist's vocal techniques will be developed with training from their coach and a special guest advisor. Will teams up with his record label's A&R executive Dante Santiago.
Find out who's facing who on Will's team by flicking through our picture previews below, and tune in to BBC One this Saturday at 7pm and Sunday at 7.30pm for the results!