Popsugar Living Cats Celebrities and Pets I April 2014 Lots of Licks Between April Celebrities and Pets May 1, 2014 by Sarah Lipoff View On One Page Photo 8 of 11 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 8 The Grumps Conan O'Brien hung out with Grumpy Cat. Source: Instagram user realgrumpycat Previous Next Start Slideshow CatsDogsCelebrity Pets