You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: SHAKESPEARE 
Clue: "Twelfth Night" opens with, "If music be the food of love," do this
play on

Category: THE WINTER PALACE 
Clue: In 1881 the "Czar Liberator", the II czar of this name, asked to be taken to the palace to die after being fatally wounded
alexander ii

Category: YOUNG LOVE IN SONG 
Clue: In "I Love Rock 'N Roll", she sang, "Saw him dancin' there by the record machine... knew he musta been about 17"

joan jett