zach cain is his absolute number one favorite on youtube. he's huge because he pulls stuff like this. >> you think your kids can fill us in on what you do here? >> he's a wizard when it comes to magic tris effects. this is something you've probably seen around. >> art gallery. >> picture it. it's like he's helping himself out, quickly grabs the flags. this definitely isn't anne hathaway, but looks like her. jumps in, quick, people are coming. freeze! then the effect is even more compelling as the camera moves away. hours -- weeks, weeks of your life, go to zach's youtube and instagram. my kids watch and watch and watch. they always, so clever, so imaginative, and so funny. >> i'm astonished and amazed. i could watch for hours and hours. that is really, really, really cool. >> he's one of the superstars of the internet. >> i can at least go ahead and tell my son we did a zach cain video today. >>> cash. >> i don't know what to do right here. >> next "right this minute." >>> and still to come, traffic's getting backed up. then this. >> the sto