I spent last week at The Influencers Festival in Barcelona and had the pleasure of meeting Blu. I got a chance to see him in action, painting a new wall in town as part of the festival. I snapped a blurry photo of it, above. It’s a giant shark made of $100 bills. The festival was videotaping him during the entire process, so expect an awesome time-lapse video to turn up soon.

If you haven’t seen Blu’s famous “Muto” animation from Buenos Aires, stop everything and watch it now: Muto.