One orangutan at the Barcelona Zoo can't stop monkeying around when it comes to magic tricks. A visitor performed a simple magic trick for the animal watching from behind a glass enclosure, and the curious simian's reaction might just be one of the funniest things you'll see all day.

In a YouTube video posted by Dan Zaleski, the ape watches as a chestnut is placed in a Styrofoam cup. The man puts on a lid, shakes the cup, and quickly dumps it out of view before returning the cup back before the curious orangutan, who stares at it intently. He removes the lid and holds the now-empty cup up for the ape's inspection.

The primate briefly pauses before reacting in the best way possible -- he throws his head back, opens his mouth wide, and appears to laugh uproariously, falling back in disbelief, legs in the air.

The video was posted Monday and has already attracted more than 3 million views. In an Instagram post, user @earthtostyle wrote: "So happy our video has given so much laughter and joy to so many people."