Bethany Cosentino was no stranger to the stage when she began working on recordings with bandmate Bobb Bruno under the name Best Coast in 2009. A former child actress, Cosentino had started writing songs in her teens, and had gained a strong online following by the time she was 17 thanks to a handful of squeaky-clean pop tunes she made available on her MySpace page under the nom de teen pop Bethany Sharayah. "I had interest from major labels," she said in a 2009 interview with PopSense. "And it was kind of overwhelming and I realized that I wasn't ready to be a 'pop princess.'...