As promised, Jimmy Fallon made his inaugural Daily Show appearance last night to promote his new book Thank You Notes. During the interview, which was a delight, the subject of Jimmy's now-legendary cover of Willow Smith's "Whip My Hair" came up, leading him to launch into an impromptu a cappella reprise and even coaxing Jon to momentarily bust out his best Springsteen impression.

You can see the entire interview after the jump. But if you only have a minute, you can get the essence of last night's show with the latest installment of The Daily Show in :60 Seconds.

The Daily Show airs Monday through Thursday at 11/10c.