This Looney Tunes t-shirt shows the yellow canary Tweety dressed up as a vampire bat. The shirt reads Going Batty! Tweety made his first appearance in 1942 in "A Tale of Two Kitties", but was not paired with Sylvester The Cat until five years later. The 1947 cartoon "Tweetie Pie" pitted Tweety and Sylvester against each other for the first time. Tweety and Sylvester went on to become one of the most popular and hilarious pairings in Looney Tunes history. On Halloween, Tweety dresses up as a vampire to scare his arch nemesis.