Keegan Allen Reveals His Dirty Secret & Talks Photographing John Mayer

Former "Pretty Little Liars" heartthrob Keegan Allen stops by the Young Hollywood Studio to show off his stunning photography book, 'Hollywood', which chronicles his love affair with both the camera and the city of dreams in photo form! He explains how taking up photography as a kid brought him out of his shell, plus he dishes on the music he's loving right now, in particular his obsession with K-Pop!