What's Opera, Doc? is a 1957 American animated cartoon short in the Merrie Melodies series, directed by Chuck Jones for Warner Bros. Cartoons. The Michael Maltese story features Elmer Fudd chasing Bugs Bunny through a parody of 19th-century classical composer Richard Wagner's operas, particularly Der Ring des Nibelungen, Der Fliegende Holländer, and Tannhäuser. It borrows heavily from the second opera in the "Ring Cycle" Die Walküre, woven around the standard Bugs-Elmer conflict. Originally released to theaters by Warner Bros. on July 6, 1957, What's Opera, Doc? features the speaking and singing voices of Mel Blanc and Arthur Q. Bryan as Bugs and Elmer, respectively. The short is also sometimes informally referred to as ''Kill the Wabbit'' after the line sung by Fudd to the tune of Wagner's "Ride of the Valkyries", the opening passage from Act Three of Die Walküre. In 1994, What's Opera, Doc? was voted #1 of the 50 Greatest Cartoons of all time by 1,000 members of the animation field.