Where It Came From: Japan
...BUT WHY? To look younger without resorting to botox.

One of the latest trends sweeping Japanese girls is getting "Yaeba" teeth. Translated as "double-tooth" the look consists of elongated canines that look like a "snaggletooth," such as the kind actresses like Kirsten Dunst have naturally. Japanese girls think it gives them a cuter, more child-like appearance.