<P> During the live shows, a group of acts ranging from only a Top 20 (season two), to as many as 60, compete for viewers' and judges' votes . In the first season, the judges could not end an act's performance, but could either "check" or "X" the performance during their critique . Since season two (2007), judges have been able to end an act's performance early, and the "check" was removed . Generally, acts each perform first in a live round consisting of a series of quarterfinals . In seasons with YouTube auditions, the round of live judging of YouTube finalists takes place then, as part of these quarterfinals . Then there may be additional shows for "Wild Card" acts--acts that one or more of the judges select to be given one more chance for audience vote despite previous elimination . From these shows, the existing group is narrowed through votes by the public and / or the judges (depending on the season). Acts then move on to a semifinal round, and even further rounds (such as a "Top 8" or a "Top 10", depending on the season) through a series of weekly shows, which trim the number of acts down each time based on a public vote . In the majority of seasons, judges have had no vote from the semifinals . All these rounds culminate in a live final, which has consisted of anywhere from four to ten acts throughout the seasons . The act with the most votes is declared the winner, given $1 million, and, since season three (2008), a chance to headline a show on the Las Vegas Strip . </P> <P> During seasons one through six (2006--11), the live shows were filmed at Stage 36 of CBS Television City in Los Angeles . In season seven (2012), the live shows were held at the New Jersey Performing Arts Center in Newark . From seasons eight through ten (2013--15), live performances were held at Radio City Music Hall in New York . From season eleven (2016) onwards the live shows are being held at the Dolby Theatre . </P> <P> For seasons five through eight (2010--13), the show also made the winner the headline act of a national tour with runners up following the final show, stopping in 25 cities . For season nine, however (2014), there was no tour; two shows were held in Las Vegas for the winner and some of the runner - up acts . (See #America's Got Talent Live, below .) </P> <P> In May 2006, NBC announced the new show . The audition tour took place in June . Auditions were held in the following locations: Los Angeles, New York, and Chicago . Some early ads for the show implied that the winning act would also headline a show at a casino, possibly in Las Vegas; however, this was replaced with a million dollars due to concerns of minors playing in Las Vegas, should one become a champion . More than 12 million viewers watched the series premiere (which is more than American Idol got during its premiere in 2002). The two - hour broadcast was the night's most - watched program on U.S. television and the highest - rated among viewers aged 18 to 49 (the prime - time audience that matters most to advertisers), Nielsen Media Research reported . </P>

Who are the judges for americas got talent 2018