America's Got Talent continues with the live quarterfinals on Tuesday and recently NBC released a preview to assure audiences that the talent will continue to impress.

48th Slot In The Live Shows Picked On 'Today Show' For 'America's Got Talent'

"In 90 seconds somebody is plucked from obscurity," said judge Howie Mandel in the August 1 preview (featured below), "And now they're on the biggest stage in the world."

Fast-paced and filled with intense cuts and remarkable feats, the NBC 40-second preview teased that audiences won't believe what the show's got coming next. Since this week's episodes will be live, the teaser had to rely primarily on footage from the preliminary auditions, featuring the young powerhouse singer Mara Justine and the surprising and visually striking Hart Dance Team. The teaser also included previous footage of the Rockettes performing on the series, suggesting that the famous dancers might be returning for another performance on NBC Tuesday.

First Group of Semi-Finalists Chosen By Viewers On 'America's Got Talent'

While the quarterfinals started with 48 acts, only 40 of them currently remain in the competition. This week's Radio City Music Hall performers include Hart Dance Team, Mara Justine, Darik Santos, Andrei Moraru, Ariel Animation, Matt and Sammy, Matt Granko, John and Andrew, Loop Rawlins, and Juan Carolos. 

Winners from last week's eliminations included singer Emily West, magicians David and Leeman, comedian Dan Naturman, and singer Miguel Dakota.

America's Got Talent continues this week with live performances on Tuesday at 9 p.m. ET/PT. Eliminations will also be broadcast live Wednesday at 8 p.m. ET/PT.

Tags: Americas Got Talent nbc Reality TV