C’mon, Post!  Your grammatical slip is showing again. 

A headline in the Feb. 22 Style section announced, “A who’s who of blues royals rock the White House.” Bluestockings who still care about subject-and-verb agreement blanched; a singular subject (who’s who) must take a singular verb (rocks), regardless of the prepositional phrase (of blues royals) that precedes the verb. 

Oh well, I guess if we don’t mind when “blues royal” Mick Jagger sings, “Brown sugar, how come you dance so good,” we can suck this one up, too.

Lynne Heneson, Washington