“Let’s make sure there’s a keyboard in Elton’s dressing room,” Ken Ehrlich, the longtime executive producer of the Grammy Awards, ordered before ducking away to meet Elton John and Miley Cyrus. Ehrlich was on his way to oversee a soft run-through of “Tiny Dancer,” which would ultimately be performe..

Arrow de Wilde never had much of a choice in her young life other than to be a rock star. The 18-year-old grew up in Echo Park at the dawn of the L.A. indie rock boomlet. Her parents — photographer Autumn de Wilde and drummer Aaron Sperske (who has played alongside Ariel Pink, Father John Misty...