"America's Got Talent 2015" is shifting to high gear as its grand finale is less than a month away. With an entertaining mix of acts, the show is expected to give viewers one good ride through the end of the season.

The last batch of semi-finalists includes Freelusion, The Professional Regurgitator, Oz Pearlman, Alicia Michilli, Mountain Faith Band, and Gary Vider. The last moments of the elimination round Wednesday was rather tense as judges weighed in on their decision between Daniella Mass and Benjamin Yonattan. In the end, Yonattan's popularity was not enough to secure him a spot to the next round, as judges chose to go for Mass. This was a huge surprise for many fans as Yonattan was considered as a sure bet for many to make it even to the finals. 

This week's winners will be joined by Three Shades of Blue, Derek Hughes, Ira, Uzeyer Novruzov, The Craig Lewis Band, Arielle Baril, and Sharon Living. First round elimination winners Benton Blount, Paul Zerdin, Drew Lynch, Alondra Santos, Samantha Johnson, Piff the Magic Dragon, and SIRO-A will also be showing up for "AGT's" explosive semi-final rounds. 

Eleven acts of the 21 semi-finalists will go head to head on the first part of the semi-finals on Sept. 1, 8 to 10 p.m. ET. Entertainment Weekly mentioned in its recap that next week's episode will be dominated by musical acts, leaving Drew Lynch as the odd man out. 

"America's Got Talent" started in 2006 and has attracted millions of viewers in its showcase of talents. With the opportunity to lead a major engagement for "America's Got Talent Live!" in Las Vegas, Nevada in October and take home the $1 million grand prize, the contestants for "AGT 2015" are expected to give it all in the last few days of the competition, something that fans of the show would not want to miss.