Is there a bigger Internet sensation than Grumpy Cat?
Wait ... don’t answer that for me.
But there is no denying Grumpy Cat is a big deal. She’s the source of numerous Twitter memes, but on Monday she was at the Arizona Diamondbacks game.
Even Arizona’s Chief Baseball Officer, Tony La Russa, got involved:
Who is Grumpy Cat? This will tell you all you need to know: