Harry Nilsson was never a super star in Rock music. He was a contemporary of ‘The British Invasion” and close friends with many including the Beatles. I always enjoyed his works because he had a very clear sense of humor and irony. He infused most of what he did with a wink and nudge.
Spaceman, while not your hard Rock was chosen because his use of English is remarkably clear and concise. His diction and simple prose will prove valuable for both the beginner and the advanced student. His use of subtlety and humor spices this work and makes it a delightful subject for our English.
Sadly, Harry died a few years ago. If you check his Wikipedia references you will find a remarkably varied and talented artist.