ends. At the end, each of the coaches will have a certain number of artists in their team who will be advancing to the next round. A new twist was added on the twelfth season: the block button. Each coach has the power to block another coach from getting an artist. To ensure that the coaches will not block each other indefinitely, it is only allowed to use the block button once in the entire blind auditions. The Battle rounds The second stage, 'the Battle rounds', is where two artists are mentored and then developed by their respective coach. The coaches of the team will "dedicate themselves to developing their artists, giving them advice, and sharing the secrets of their success in the music industry". Every member of their team battle against another member from their team. They sing the same song simultaneously, while their coach decides who should continue in the competition. The coaches have to choose from the four individual "battles" to take artists to the live round. Starting from the fourth season, each coach can steal one losing artist from other teams. Another twist was added in the seventh season: the Steal Room. While steals have returned, each artist that is stolen will sit in a designated seat in the Steal Room as they watch the other performances. If a coach has stolen one artist but later decides to steal another, the first artist will be replaced and eliminated by the newly-stolen artist. The artists seated at the end of the battles will advance to the knockout rounds. In the eleventh season, each coach is now allowed to save an artist from their own team. The Knockouts The third stage is the Knockouts. The format has varied from the early seasons where two artists each sang one song with one advancing to more recent years where all artists performed and the coach would select three to send to the Live Shows. Live shows The final stage, dubbed the 'Live shows', is where the surviving combatants perform in front of the coaches, audience and broadcast live. Each coach will be having four artists in their team to begin with and the artists will go head-to-head in the competition to win the public votes. These will determine which artist advances to the final eight. The remaining three artists' future in the show will be determined by the coaches, choosing