The semifinals results episode airing September 16 has tightened sentiment around America’s Got Talent Season 21 runner-up, as public voting from the prior night’s performances determines which six acts join the four Golden Buzzer finalists already locked in. Strong showings by Geno Ploeger’s magic, Veronika Goroshkova’s aerial work, and established frontrunners like Unitree, Lai Noelle, Nene Royal, and Hundred Fingers have kept multiple contenders clustered near even implied odds, reflecting the unpredictable nature of viewer votes and historical patterns where versatile or viral acts often surge late. Upcoming finale performances on September 22 will serve as the decisive catalyst, with chart momentum, social buzz, and any last-minute judge feedback likely to shift positioning among the diverse mix of singers, magicians, dancers, and novelty acts.