Billy Crystal Does His Swingin' Thing for Leno

When Crystal used to host the Academy Awards, we always loved his opening musical montage dedicated to the films nominated for Best Picture. Crystal was Jay's first guest back in 1992 and sang the appropriately titled made-up number "First Guest." As The Tonight Show wrapped its final week up, Billy came back and busted out a "Best of Jay Leno" medley that acknowledged three important truths:

1) Leno is the Dirk Diggler of chins.

2) Leno owes his career to Hugh Grant, Divine Brown, and when the former's love of oral sex met the latter's career choice on Sunset Boulevard.

3) Leno will be back after taking a summer vacation, so this isn't exactly a Johnny Carson rarely-to-be-seen-again moment.