Ooooh, this is gonna make Donald Trump so angry... which means it's a good thing!!
And boy, are they ever!!
Jimmy Fallon may be new to The Tonight Show, but his first standup comedian isn't!
Jerry Seinfeld has been appearing regularly on the show since 1981, and he still knows how to slay an audience!
Ch-ch-check out the video (above) to see the Sein staying current riffing on technology and slamming snail mail!