original_query: What is the significance of The Jam holding the record for the best-selling import-only singles in the UK?
query: What is the significance of The Jam holding the record for the best-selling import-only singles in the UK?
answer: The Jam's record for best-selling import-only singles in the UK highlights their immense popularity, even without official UK releases of certain singles.  Their success came purely from the demand created by fans buying imported versions.