It's hard not to take note of One Direction, the boy band throngs of pre-teen girls are obsessing over around the world. When young Niall, Liam and Louis (shown) plus Harry and Zayn walk down the street, their fans aren't the only ones who perk up — the paparazzi do, too.

(Photo by Hannah Johnston/Getty Images)

It's hard not to take note of One Direction, the boy band throngs of pre-teen girls are obsessing over around the world. When young Niall, Liam and Louis (shown) plus Harry and Zayn walk down the street, their fans aren't the only ones who perk up — the paparazzi do, too.

(Photo by Hannah Johnston/Getty Images)