|Their cover shoot for the August edition of Glamour|
The Victoria's Secret beauty spent the day "posing, changing and chatting" to the five-piece boy band - Niall Horan, Zayn Malik, Liam Payne, Harry Styles, and Louis Tomlinson - while working on The US edition of Glamour magazine's August cover shoot and found them all "adorable".
She said: "The lads are like puppies - they're adorable. They've all got this sparkle in their eye and they're all just gorgeous. White, white eyes. Shiny, shiny teeth."
Rosie, 26, also managed to score some free tickets for her and her boyfriend, actor Jason Statham, to see the group in action.
She said: "They've been a complete nightmare. So annoying and rude... I'm only joking. They're so sweet. Very nice to meet them, I'm going to the concert tonight - I'm very excited."
Meanwhile band lothario Harry, praised Rosie, calling her "lovely, really cool" while Liam was lost for words in the presence of the stunning model.
Liam added: "I'm not the best at talking to women. When you're with someone like Rosie, it's a bit more difficult. I was like, I don't really know what to say, so I'm just gonna kind of stand here and try to be cool."