... And down goes Hadid!
The younger sister of Gigi Hadid was modeling a black sequined below-the-knee dress with sheer ruffles on the arms and sides and 6-inch heels when she took the spill.
Photos show her laughing and smirking at her fall, as the crowd looks on in shock, many of them covering their mouths. Bella quickly got up and continued walking down the runway.
Other models in the show included Kendall Jenner and Joan Smalls, all of whom walked the runway without any issue. Actresses Emily Blunt and Sienna Miller were in the audience to check out the show.
Bella is still relatively new to the modeling world, but she's made an impact fast.
Like her mother, former "Real Housewives of Beverly Hills" star Yolanda Hadid, Bella has been diagnosed with Lyme disease.
In the past she said she believes she got it from constant contact with their horses (Bella was an accomplished equestrian and once had hopes of competing in the 2016 Olympic games).
"That was my goal," she told ES Magazine, "but I didn't know I was going to get sick. I was exhausted all the time. It affected my memory, so I suddenly would not remember how to drive to Santa Monica from Malibu, where I lived. I couldn't ride. I was just too sick. I had to sell my horse because I couldn't take care of it."
In late August, she took to Snapchat to give fans a glimpse into her ongoing battle with Lyme disease, sharing a photo of her arm hooked up to an IV while hanging out at home. "Everyday," she captioned the image.
Around the new year, Yolanda shared an image of Bella in bed with an IV hooked up to her arm.
"2015-Watching my brave babies suffer in silence in order to support me in my journey has struck the deepest core of hopelessness inside of me, it is because of them that I continue to fight relentlessly.......," she wrote. "I will not allow them to live a life of pain and suffering……. I will prevail and walk to the end of the earth to find a cure for them and millions of others debilitated by this invisible disease!!!! We all deserve to live a healthy life, don't you think?"