To celebrate Leap Year, Frasier suggests that everyone do something spontaneous. Something bizarre. Something they wouldn't normally do. Taking his own advice, Frasier opts not to perform his usual rendition of "Buttons and Bows" at an annual benefit but instead sings an aria from an Italian opera. The results are almost as disastrous as Niles' (David Hyde Pierce) "spontaneous" effort to win back the affections of his ice-princess spouse, Maris. ~ Hal Erickson, Rovi