Musician, actor, author, publisher, and jack-of-all-trades Marshall Crenshaw launches Twenty Summers’ third season with an intimate acoustic solo performance. In a career now spanning four decades, Crenshaw has reached the Billboard Top 40 and been nominated for a Golden Globe Award. As a stage and film actor, he has portrayed other musicians, ranging from Buddy Holly to John Lennon. Since 2011, Crenshaw has served as the host of WFUV’s radio show “Bottomless Pit,” and he is a contributor to Martin Scorsese and Mick Jagger’s HBO series “Vinyl.”