With most other guests wearing jeans or denim shorts, reality star Danni stood out in her pretty pale blue denim frock.
Danielle joined a string of other celebrities at yesterday's bash at Chinawhite club in London, including co-star Dan Edgar and former co-star Mario Falcone, who was there with on-again girlfriend Emma McVey.
Other stars in attendance included Charlotte Crosby, Chloe Goodman, Imogen Thomas, Holly Hagan and Stephanie Pratt.
The Jeans for Genes campaign raises money to help improve quality of life for kids affected by genetic disorders. The official Jeans for Genes day is Friday, 18 September, where schools and workplaces can allow people to wear jeans for the day in exchange for a charity donation.
Danielle was looking fantastic last night, no doubt partly because she's just home from an amazing holiday to Las Vegas with pals including Jess Wright.
Meanwhile, her ex-boyfriend James 'Lockie' Lock recently spoke highly of her in an interview, saying although they're not together right now, he wants them to get back to being good friends.
"I have a lot of time for Danielle," he said. "Before me and Danielle went out as boyfriend and girlfriend, we were really good friends, and I want to get back to that state. I don't know if me and Danielle could ever be together again, but I do enjoy her company. I do enjoy Danielle as a person. She is a good friend to me and we still speak."
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