UPDATE: Tuesday night on Local 3, the Chattanooga R&B group CitiLimitz , will compete in the first of four weeks of quarterfinals to determine a Season 20 winner on NBC's “America’s Got Talent.”

Twelve acts will compete, with the six of those acts that earn the most votes from viewers, will advance to join the four Live Show Golden Buzzers heading to the finals.

New this season, one act will receive a Semifinals Golden Buzzer during the semifinals performance show on Sept. 16, earning a coveted spot in the two-night finale beginning Sept. 23 and concluding Sept 24.  

During the live shows, viewers of “America’s Got Talent” will have a chance to vote for their favorite act at NBC.com/AGTVote and via the “NBC” and “AGT” Apps (available through Google Play and on the App Store).

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