Oop's!!! Mark zuckerberg post a photo of Kevin Systrom dancing on a wall

How possible is this? Mark zuckerberg post this photo on his wall and said;
 Kevin is literally dancing on the walls celebrating Instagram reaching 300 million people,he also said what you are viewing is real.

• 

  Mark Zuckerberg We did not edit this photo to put Kevin on the wall. He did that by himself!
  
  

  
  

  
  

   

  
  

  Mark Zuckerberg

  6 hrs ·
  

  
  Congratulations to the Instagram community for reaching 300 million people!
  
  And congrats to Kevin, Mike and the team for building such an amazing service.
  
  Below is a photo of us floating around in Instagram's gravity room.