One Direction "chatted up" Rihanna at the MTV Video Music Awards (VMAs).

Writing in their new book 'Who We Are', Niall recalled: "We were at the VMAs and Rihanna was sitting in front of us. 'Louis!' I said, 'Look, there's Rihanna!' I was well impressed by that and we ended up chatting her up a bit."

The quintet also enjoyed a "great experience" with actor Johnny Depp when the 'Lone Ranger' star invited them to perform at his house because he had been unable to take his children Lily-Rose, 15, and 12-year-old Jack - who he has with former partner Vanessa Paradis - to one of their shows.

Louis shared: "We'd heard [Johnny Depp's] kids were fans of the band, which was cool.

"Originally he was going to come down to a show with his family, but he had an injury of some kind and was on crutches, so he said, 'I can't make it. So why don't you come down to my house and meet the kids?' We were like 'Er, OK. Let's all pile round Johnny Depp's house. Great!'

"So we did, and that was a great experience."