Louis Tomlinson left Syco last week after coming to a mutual agreement with the label, the last member of One Direction to have remained with Simon Cowell. All have embarked on solo careers with varied success, so – at the moment at least – it seems unlikely a reunion is on the cards. Regardless, there’s a lot of room for nostalgia for the X Factor group who went on hiatus in 2016, with special celebrations planned for July 23, which marks 10 years since the band’s formation.