Our favorite Jimmy Fallon bits over the last few years have all been musical ones—from Will Ferrell's recent "Tight Pants" song to Stephen Colbert singing "Friday," from Fallon's expert Neil Young impressions to Bruce Springsteen's wiggle-wiggle. Last night, he and Will Smith revealed that their grandfathers (Will "Sunnyside" Smith and James "Fatty Monroe" Fallon) had hosted a 1920's radio show together...and they performed "Parents Just Don't Understand," "Gettin' Jiggy Wit It," and a song that amounted to a big plug for Men In Black III. Watch below, even though this still doesn't make up for the fact the film doesn't have a Will Smith theme song.
best of gothamist
Five Great Local Beaches You Can Get To Without A Car
$250 VIP GoogaMooga Tickets: You Would've Gotten More Full Eating The Money
Your Summer 2012 Top 10 Blockbuster Movie Guide!
Photos: Experience "NASA's" Amazing Mission To Mars Inside The Park Ave Armory
7 Best Rooftop Bars In NYC, For Your High-Altitude Drinking Pleasure
White Fence's Tim Presley Talks Recording With Ty Segall, Brooklyn's Blandness, & Peeing With His Cat
24 Magnificent Photos Of Manhattan Peacocks To Take The Edge Off Today
Mike Birbiglia Ate In An Airplane Bathroom, And Other Stories From The Moth Ball
John Hodgman Talks Nick Nolte, His Deranged Mustache, & How Money Buys Happiness
Videos: Mourning And Celebrating Beastie Boys' Adam Yauch

