Most Looney Tunes fans are familiar with Chuck Jones' 1976 TV special "Bugs and Daffy's Carnival of the Animals". It combined the orchestral music of Camille Saint-Saëns and the poetry of Ogden Nash with animation of Bugs Bunny and Daffy Duck, as well as abstract animated musical segments.
It seems there was another "Looney" interpretation of "Carnival", done as a live performance with the West Coast Symphony in 2004. Joe Alaskey performed introductions to the musical pieces as Daffy Duck, Bugs Bunny, Marvin the Martian and Yosemite Sam. Someone recorded it (or at least most of it), and it's a real gem.