Paul McCartney has been a cartoon character before, but probably none have made him as happy as his appearance on Tuesday. That is when he will appear in the final print edition of Britain's longest-running children's comic, The Dandy, one of his favorites as a kid in Liverpool. After Tuesday it will only be available digitally, and when Macca heard about it, he wrote a letter to its editor saying, "I hope it's not too late!," echoing something he told Britain's New Musical Express in 1963 wen he said it his ambition was to have his picture in the comic. He will be seen grimacing as Dandy's Desperate Dan squeezes his fingers in a firm handshake, after which McCartney leads 50 of the comic's most famous characters in a sing-a-long of "Hey Jude."