Liam Payne has admitted he "absolutely hated" Louis Tomlinson when One Direction first formed.
Both have put their differences aside now, but back when they first met during 2010's The X Factor, the two eldest members found themselves at loggerheads, according to The Sun.
Former bandmates Liam, 26, and Louis, 27, clashed over who they thought should be the leader of One Direction, which they formed with Harry Styles, 25, Niall Horan, 25, and Zayn Malik, 26.
Speaking on Hits Radio today Liam said: "When we were in the band it kind of felt like, because he was the oldest and because I'd been singing for quite a bit of time we both got put in a weird position.
"He was wanting to be the leader and I was doing my thing and wanted to.