‘Firework’ singer will play Zoey’s cousin, reports USA Today . By Gil Kaufman Katy Perry Photo: Kevin Mazur/WireImage Okay, so the whole “Sesame Street” thing didn’t really work out, but that doesn’t mean that Katy Perry has given up on her TV dreams. Just the opposite, in fact. After proving her comedic chops on “Saturday Night Live” and “The Simpsons” last year, the singer is poised to make her sitcom debut on “How I Met Your Mother” later this season, according to a report in USA Today . According to the paper, the show will work the pop star into the “Mother” mix as the cousin of architecture loving support character Zoey (Jennifer Morrison). Perry’s character reportedly will be a beautiful and na
