Frankly, I find mentalist acts the utter dregs of magic. Almost never is any real talent or dexterity involved. This one was poorly paced and boring on top of it. (Which no doubt means he’ll be voted through, the audience baffles me.)
For those who didn’t see it: The mentalist had four ‘ordinary’ sealed food cans sitting on a table. Each was wrapped in a paper label of a different color – red, yellow, blue, black. He said three cans held some disgusting ‘treat’ that was bits of cut-up pig snout/face, and the last can held pineapple. He got one of the judges up to be the guinea pig who would have to eat from the selected can, while Simon Cowell would pick which can, and supposedly he could influence Cowell to pick the pineapple can – or maybe the idea was supposed to be that he would predict what Simon would pick, and thus put the pineapple into the can destined to be chosen. He hinted at both at various times.
And, of course, that’s the way it worked out. The girl got the pineapple. It was an extremely simple to explain trick. In fact, I think he foolishly gave it completely away when he announces to the audience that he ‘sealed his prediction’ in a different can for the final reveal.
Clearly if he has the ability to seal cans, he can seal them with whatever he pleases inside, yes? So take four cans, and put a barrier inside each of them half way down, creating two separate compartments. Then fill one end of each can with pig bits and seal it. Then fill the other side of each can with pineapple, and seal that too. Then wrap each can with solid colored labels so there’s no way of telling if a can is upside down or right side up. Set the cans up on a table with the pork side up. Let Simon do his pick a can and swap over and over. It doesn’t matter at all. Proceed to eliminate cans, popping open the top to reveal, yup, pig bits, I’m not lying.
Until you get to the can you plan to force on - was it Heidi? Anyway, unlike the other times, you don’t simply open the top of the can as it sits on the table. No, this time you casually pick it up and while doing some distraction bits with getting Heidi to pick up a fork and grip it properly, you TURN THE CAN OVER.
That’s it. The entire secret. He didn’t need to ''predict" which can would be fed to the judge, it didn’t matter at all. Every one of the four cans would have given her the yummy pineapple, just so long as he flipped the can over first.