The singer graced the red carpet in a show-stopping red David Koma dress, featuring lace panels and a net skirt.
For her second look, Ballerini opted for a sparkly mesh long-sleeve dress, a black bralette and high-waisted briefs.
For her third outfit, Ballerini took inspiration from Margot Robbie and recreated her Barbie look from Greta Gerwig's film. She paired her pink flared pants and pink vest with a white cowboy hat.
The singer also wore a graphic two-piece sequin set for the night.
Her fifth look featured a yellow turtleneck dress featuring a dramatic thigh-high slit.
For her sixth outfit, she kept it casual and chic by pairing grey trousers with a black T-shirt that read, "This Shirt Saves Lives," a tribute to St. Jude's Children's Research Hospital.
But Ballerini later took the stage to perform her reimagined version of "Love Me Like You Mean It" in a long-sleeve gold sequin bodysuit.
Ballerini quickly changed into her eighth outfit, which featured a leather off-shoulder belted jacket with a miniskirt.
Coming to her grand finale look, Ballerini donned a mint green feathered minidress to add a touch of drama to the evening.