'n cream mega sundae. you know, i'm more than a cook. i'm everyone's best friend. 4 dishes for 4 dollars each. [ cheers and applause ] >> steve: from studio 6b in rockefeller center in the heart of new york city, it's "the tonight show starring jimmy fallon." tonight, join jimmy and his guests -- taraji p. henson, mike birbiglia, musical guest fka twigs. and featuring the legendary roots crew. >> questlove: 424 compton. >> steve: and now, here he is,