Is that you, Kevin Bacon? The actor caused a social media firestorm on Monday when he posted a selfie to Instagram that showed him sporting a much fuller face than usual. In the photo, Kevin flashes a huge smile in front of what appears to be a trailer on a movie set. One Instagram user wrote, "No way is this Kevin, can't even recognize any feature!" while another said, "Good joke!" But unless Kevin was stung by a unusually large bee, it is more likely the result of Hollywood makeup magic. He looked like his usual self on April 15 at the premiere for his recent movie Adult Beginners in LA. While his IMDb page doesn't reveal any new projects in the works, fans have theorized that his look could be for a commercial or an undisclosed project or that he just used a mobile app. See the unusual selfie, above, then sound off in the comments on what you think it could be!