Four vocal gladiators, spanning all music genres, have been chosen and begin the fight to defend their coveted seats in front of a panel of industry experts: Grammy(R) Award-winning musician, record producer and songwriter Sean "Diddy" Combs, record-producing hitmaker DJ Khaled, and Grammy-winning recording artist and songwriter Meghan Trainor. Eight-time Grammy(R) Award-winning and multi-Platinum solo artist Fergie will guide the contestants, while they battle it out against new artists determined to take their spots in the competition. Find out who will move one step forward to the ultimate prize in the all-new "Week One" season premiere episode.