Mark Ronson is a music producer, DJ and guitarist who's recorded with Adele, Paul McCartney, Ghostface Killah, Lily Allen and Duran Duran, among others. Astrid Stawiarz/Getty Images hide caption

itoggle caption Astrid Stawiarz/Getty Images

"It was the first time I was aware of how strange humanity has got," Laura Marling says of living in L.A., "and that we live in such close proximity to one another. Courtesy of the artist hide caption

itoggle caption Courtesy of the artist