The brunette is the proud owner of a new restaurant in South Woodford, London called Hors D'Oeuvre, which celebrated its launch with a star-studded party on Thursday night (5 September).
On the restaurant's official Twitter account, it describes itself as a venue for "coffee and light cuisine".
James 'Arg Argent, Joey Essex, Lydia Bright, Abigail Clarke, Debbie Douglas and Lauren Pope were among the TOWIE regulars who turned up to show their support for Dannii's new business venture.
As the star of the night, it's no surprise Danni looked gorgeous. She started the evening in a simple, yet elegant ensemble of a crisp white shirt, black skirt and black heels, before changing into a full-length, blue sparkling gown.
Danni clearly had a fantastic night, tweeting afterwards: "So happy with the turn out to night at my new restaurant @hdosw. My staff done me so proud. Thank you to all my friends and family."
Will we be seeing Hors D'Oeuvre in any upcoming episodes of TOWIE, we wonder?!
Danni was joined on the red, or should we say grass, carpet by Arg – and it almost looked like they'd coordinated their monochrome outfits!
Arg was later seen leaving the venue with Joey Essex, who was dressed in all-black.
Fashionista Lydia Bright looked beautiful in a black dress and eye-catching red heels, while Lydia's mum Debbie opted for summer elegance in a floor-skimming green gown.
Debbie later tweeted at Danni: "Very very PROUD of you. Its going to be a huge success."
Abi Clarke showed off her curves in a blue, one-shouldered dress, while Lauren Pope kept it simple in an elegant pale blue camisole and white skirt.
Other TOWIE stars - both new and old - who couldn't attend the launch made sure to send their congratulations, including Jessica Wright, Ricky Rayment, Cara Kilbey and Lauren Goodger.
Jess said: "Wishing @MisPark_Dempsey lots of luck with her new restaurant in south Woodford @HDOsw so sorry I can't make tonight hope it goes well."
Lauren, who is battling illness, tweeted: "Good luck tonight @MisPark_Dempsey sorry I couldn't make the launch I am rotten with cold."