Conversation so far:
What inspired the album Sgt.
Pepper's Lonely Hearts Club Band?
during a return flight to London from Kenya, where he had been on holiday with Beatles tour manager Mal Evans.
Are there any other interesting aspects about this article?
Sergeant Pepper" itself didn't appear until halfway through making the album.

Question: What was the concept behind the album?
Self-contained rewrite: What was the concept behind Sgt. Pepper's Lonely Hearts Club Band?