The Aussie songstress is trying to raise awareness of World Aids Day in her role as an ambassador for the Terence Higgins Trust.
"Pictures can be very powerful - we wanted to make this campaign fun and sexy," said the stunning 33-year-old.
Danni, who will spend Christmas with sister Kylie in Australia, says personal experiences prompted her to do something.
"I guess it comes from knowing a lot of people in the entertainment and having friends who have been affected by Aids," she adds.
"It's an ugly, ugly, ugly thing but it is something that is real in my life."
And Danni, in the charts with new single You Won't Forget About Me, says she wants to "break down myths" such as Aids only being a gay disease.
"HIV doesn't discriminate - somewhere in their minds young people still think it is a gay disease," she added.
