The 40-year-old Australia's Got Talent judge caught her foot in her flowing gown while trying to make a graceful exit from her Project D London SS13 preview. Totally practical evening wear!
Ever the good sport, Dannii laughed off the tumble as a handsome onlooker came to her rescue. Like a trooper, she got up and signed autographs for fans before jumping into her car looking happy and relieved.
At least it wasn't Dannii's "fall" collection.
As her older sister Kylie once sang in 'Giving You Up', "A girl's gotta suffer for fashion".
In pics: Celebrity wardrobe malfunctions