Animal celebrity Grumpy Cat, who rose to fame on YouTube, was in New York City on Thursday August 7th to promote her latest book.<br/> <br />Fans of the perpetually underwhelmed feline wore t-shirts bearing catchphrases such as 'I had fun once - it was awful'.<br/> <br />And she sat stoically by while some gushed over her grimace.<br/> <br />SOUNDBITE: Chris, fan, saying (English):<br/> <br />"She's so adorable looking and grumpy all the time."<br/> <br />SOUNDBITE: Judy, fan, saying (English):<br/> <br />"I tried to have a grumpy face, but you can't because when you look at Grumpy Cat... so beautiful and so laid back and so calm and special, you just have to smile."<br/> <br />The fed-up feline's first book spent 10 weeks on the New York Times best-seller list.<br/> <br />She's now on a promotional tour of North America to promote her follow-up 'The Grumpy Guide to Life'.<br/> <br />Even if she's still not smiling, perhaps her owners are.