'America's Got Talent' Performance Finale: Four Acts Battle for Victory (VIDEO)

This is it! After months of performances, it comes down to four final acts and a battle between dance and voice on 'America's Got Talent' (Tue., 9PM ET on NBC).

And yet, neither of the dance acts are what you'd expect. One, Team iLuminate, uses light-up costumes to create mind-blowing visuals on stage, while the other, the Silhouettes, creates illusions using shadow.

Both acts have blown us away in the past, but it was tough picking a favorite in this performance finale. Silhouettes went back to their more traditional shadow play, and created a rather wonderful story about a little girl going into a dreamscape. It was like watching Little Nemo in Slumberland play out on the stage before us.

Team iLuminate, on the other hand, didn't seem to be as cohesive in their story as they've been in the past, but they continued to play delightful visual tricks on our eyes with their costuming and tricks around the stage. Whether this was their best performance or not, there's no doubt that this is easily the best act to imagine taking over a Las Vegas stage and making millions of dollars.

Of the singers, it became difficult to watch POPLYFE the deeper they got into their Queen performance. First of all, Freddie Mercury is akin to a vocal god, so unless you've got the chops to blow us away, leave it alone. And while Kehlani Parrish has a great voice, she strained to keep up with Mercury's range.

Making matters worse, one of the guys singing backup seemed to have his mic set louder than hers was, and his voice just isn't that great. I said last week that the guys in the band needed to stop trying to sing back-up and focus on the playing, and they positively killed this week's performance with their singing.

But Landau Eugene Murphy, Jr., on the other hand, tackled Sinatra's 'My Way,' and he may well have saved the best for last, as the judges said. It was an outstanding performance, with a perfect build throughout until you couldn't help but be applauding by the end of it. Which means, we have a three-way race for the title (sorry POPLYFE, but I really think you blew it).

Singers have been dominating, and I absolutely could see Murphy continuing that streak. If he did, I couldn't even be mad about it, because he's such a unique variety of singer. Team iLuminate seemed the favorites going into this round, but I don't think they delivered their strongest performances, while the Silhouettes stepped it up in a major way. It's too difficult to call.

But since I've put myself out there each week so far, I'm going to do it again and take the safe bet. I think iLuminate slipped just enough to give Murphy the edge above them and he's going to take it this season.