As America gears up to vote for the winner of “The Voice” Season 15, judges Blake Shelton, Adam Levine, Kelly Clarkson and Jennifer Hudson prepare to say goodbye to the contestants, and enjoy the large salaries they were paid for their appearances on the NBC singing competition.

While the coaches bring some humor and tension to the competition, they don’t appear on the primetime NBC series on Mondays and Tuesdays for free.

Shelton reportedly pulls in $13 million per season, according to Life & Style. However, after negotiating a deal that would have his girlfriend, Gwen Stefani, appear on the show, the “I’ll Name the Dogs” singer’s salary is suspected to be even higher.

Although Shelton and Levine have been on “The Voice” since its 2011 premiere, the Maroon 5 frontman reportedly still pulls in around $13 million per season.

Clarkson earns between $13 million and $14 million per season, possibly making her the second highest paid judge on the series. When the “Catch My Breath” singer first joined the show, there was reportedly a bidding war between NBC and ABC, which was rebooting “American Idol” and was trying to get the alum to appear as a judge. NBC won the war, but they had to pay the price.

Meanwhile, not much is known about Hudson’s salary, however, rumors allege she doesn’t get along with the other coaches. John Legend is expected to replace Hudson on the judges’ panel for “The Voice” Season 16, while Shelton, Levine and Clarkson are all expected to return.

Fans can catch “The Voice” Season 15 finale on Tuesday at 8 p.m. EST on NBC.