America's Got Talent revealed its remaining set of four eighth-season semifinalist acts and two of the judges' Wild Card picks during Wednesday night's live broadcast of the NBC reality competition series.

Dave Fenley, Catapult Entertainment and D'Angelo & Amanda were revealed to have finished as the Top 3 vote-getters after Tuesday night's performance show which featured the season's fifth and final group of 12 quarterfinalists performing for home viewer votes, automatically earning them a spot in America's Got Talent's eighth-season semifinals.

Virginia State University Gospel Chorale, 2Unique, Sprice, Melody Caballero, Ruby & Jonas, Selena Mykenzie Gordon, and Sam Johnson had received the seven lowest home viewer vote totals in no particular order.

The announcements then left America's Got Talent judges Howie Mandel, Heidi Klum, Melanie "Mel B" Brown, and Howard Stern with the task of deciding which of the two acts that had received the fourth and fifth highest vote totals -- Duo Resonance and John Wing -- should become the fourth act to advance to the semifinals.

"I know that everyone thinks I don't like comedians, and that is not true. And John, you made me laugh out loud last night. You were really, really funny in your dry, sarcastic way. I really, really liked it. And you guys, Duo Resonance, you did an amazing performance. It was beautiful -- athletic and I just loved it. Today is super hard for me to choose, but I'm going to choose Duo Resonance," Heidi said.

"I constantly say that as a comedian, the toughest thing to do it to elicit laughter from an audience. You need more from an audience than any other act needs because there needs to be a response every 30 seconds otherwise you fail. John, you got that response," Howie explained.

"Duo Resonance, you're doing things -- talk about it being tough -- that I can't even imagine trying to do. It's so athletic, there's so much strength, it's so beautiful, it's so creative, it's unimaginable. It really is, what you do. And you did something different each and every time we've seen you, which is important to me. This is like the toughest decision we've had this year, I think, but I have to -- I've really got to go, because I know it best, with John Wing."

"You're both so different," Mel B. said. "John, you're really very funny. I say that time and time again. You make me belly laugh every single time you walk out onto the stage. And Duo Resonance, I mean, you were sexy and hot and steamy. I loved it! I absolutely loved it. But I have to go with my gut and John, John you're my guy."

Howard then had the responsibility of either sending John Wing through to the next round or bringing the vote to a tie in which America's chosen fourth-place act would get to move forward in the competition.

"Can you imagine this decision? This is really crazy. Usually it's easy. Duo Resonance, I just have to applaud you. From last night, you took something old, traditional, and it didn't come off cheesy, as we say. We weren't laughing at you. You were remarkable, remarkable," Howard explained.

"John Wing, you know, when you see Tom Cotter up there, he got robbed [of winning] last year. And John Wing is right up there. I mean, he's one of the best comics America's Got Talent has ever had grace their stage. You got two great acts. Mind you, I'm trying to think, but nothing's happening. I'm going to give you my decision and I swear to you this is the toughest one I've had yet, but I have to go with John Wing, because he was on fire last night and I can't take this away from him."

Heidi then decided to use her Wild Card pick on Duo Resonance, sending them to the semifinals. Mel B. also spoke up and said she wanted to use her Wild Card as well, selecting Tone the Chiefrocca, who created and sings the one-hit wonder "B double O T Y."

Howie and Howard will announce their own Wild Card picks next week when the 12 semifinalist acts perform again for votes.