Utilize the input text as a context reference, choose the right relationship between One Direction and London from the options. Options: 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