Tomlinson was also joined by his sister Lottie at London's Cirque Le Soir, where the commemoration took place, reported Femalefirst.
"It was family and friends drinks in Cirque, all paid for by Johannah's husband Dan. It was a celebration of her life and his X Factor performance. It was a very emotional night," a source said.
1 D members Niall Horan, Liam Payne and Harry Styles were also present in Tomlinson's dressing room backstage at "The X Factor", where he performed his debut single "Just Hold On" with DJ Steve Aoki.