At 38:00 in the video, the discussion focuses on how rock mixes with English Folk and Glam as someone reinvents the rock star with a new name. The correct answer, David Bowie, fits this description perfectly. David Bowie was known for his innovative and eclectic musical style, blending various genres including rock, folk, and glam rock. He also famously reinvented himself multiple times throughout his career, often adopting different personas and stage names. Therefore, it is clear that David Bowie is the correct answer in this context.