Complex sentence: Powers quickly recorded an album, "Midnight Mary"-recorded in the week of John F. Kennedy's assassination with musicians including Paul Simon and Roger McGuinn-and also recorded an album, "Special Delivery", with Bobby Darin and Roy Orbison.
Split into simpler sentences: Powers quickly recorded an album, "Midnight Mary"--recorded in the week of John F. Kennedy's assassination--with musicians who including Paul Simon and Roger McGuinn. He also recorded an album, "Special Delivery", with Bobby Darin and Roy Orbison.