Then again, she might have been. Kanye recently shared that NOT smiling makes him smile (we know, we don't totally get it either), so it's entirely possible that the "Dark Horse" singer was actually beaming on the inside.
Hmm...still seems a little awkward. Katy could have just been totally exhausted. She did tweet that she had been in three cities in one day, so maybe she was just suffering a serious case of jet lag.
The good news is that it looks like they eventually found something to smile about. We're guessing this was right after Kanye broke the ice and was like "So, Katy...do you like Beyonce?"
...And then all was right in the world.