ET's Keltie Knight joined the actress ahead of her big night at the Toronto International Film Festival over the weekend, letting us into her world to get a behind-the-scenes look at how she got all dolled up.
So what's Palmer's routine before hitting the red carpet? She has to make sure she eats. That day, the 26-year-old actress munched on a hamburger and fries before getting her hair and makeup done and slipping into her couture gown.
While getting ready with the multifaceted star, who also sings and co-hosts GMA3: Strahan, Sara, and Keke, she dished on how she just applied to culinary school.
"You know, might be a little Chef Keke in a minute," she joked before slipping into her sexy Roberto Cavalli dress.
The black-and-gold backless creation featured a thigh-high slit, and a black bodysuit under the sheer layer -- it was also "mom-approved."
Palmer then got final touchups before getting into the car and delivering her rock star poses on the red carpet.
"I did the turn, I gave them the front, but you know, I really worked that back and I feel good," Palmer told Knight while at the event. See Palmer's full transformation in the video above.