The Girl's Aloud singer modelled the lingerie label's new spring/summer collection for their latest ad campaign which was shot in Miami.

“Miami was amazing! I had a great time," said Sarah,"The locations we shot in were fantastic - first in a $25 million dollar house and then on a $5 million yacht."

Sarah also told how she had to work hard to look her best in the new pictures: "I am not a supermodel like all the other previous Ultimo models so I worked really hard to look the best I possibly could," she said.

Michelle Mone, creator of Ultimo said, “Sarah was so confident in her second shoot for Ultimo. She looked absolutely incredible in every set she had on! I feel that this Spring/Summer collection is our strongest to date and although Sarah is not a Supermodel she could give anyone of them a run for their money."