What is the relationship between One Direction and London in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Niall Horan of One Direction said the group is excited to return to London ”to perform for our fans in the Roundhouse and around the world on Apple Music!”

Answer: location_of_formation