tonight, join jimmy and his guests -- billy crystal, beanie feldstein, music guests flatbush zombies,nd featuring the legendary roots crew. >> questlove: 476, west philly! woo! >> steve: and now, here he is, jimmy fallon! ♪ ♪ [ cheers and applause ] >> jimmy: oh, thank you very much! thank you very, very much! welcome to "the tonight show," everybody. welcome, everyone. [ cheers and applause ] thank you for being here. hot crowd. you guys look good tonight. welcome. well, here's what people are talking about. hillary clinton and donald trump are starting to really go at it. [ light laughter ] they're going nuts. yeah, yeah. this week, hillary criticized donald trump's behavior saying that when you run for president, the rest of the world is watching. [ laughter ] while the rest of the world is like, "yeah, and we're loving this." [ laughter and applause ] "this is unbelievable. you can't write this. canada, pass the popcorn." [ laughter ] but this election keeps changing. in fact, one of trump's supporters just said trump may not actually build a real wall. he said it might be just a