Photos: Andrew W.K. at The Fonda Theatre, Los Angeles

Mauricio Alvarado: I've been a concert photographer for the past 5 years. My work has been featured on various music magazines and websites. Some of the bands I've photographed are Yes, Black Sabbath, Iron Maiden, Slayer, Rob Zombie, Santana, and many more. I'm obsessed with 70's Progressive Rock music. I enjoy photographing bands that I grew up listening to. I'm also a big vinyl record collector since I was in High School. I always enjoy taking my albums to shows and getting them signed by the bands.