Sisters Jade and Baddie Gi, who worked as bartenders at the establishment, claim that members of Cardi B's posse assaulted them after she instructed them to do so.
The 26-year-old - dressed in a belted black coat with a fur collar and a wide-brimmed beige hat, with rainbow-colored hair and silver sparkly nail extensions - was in court as she received five Grammy nominations.
As Cardi B left the courthouse, a reporter asked her how it felt to be nominated, according to NBC News.
She was due to appear in court for an arraignment on Monday but missed it because she was in Miami filming a music video. The judge declined to set bail.
Friday's court date isn't her only commitment.
Investigators were exploring whether the fracas involved a romantic dispute.
Cardi B, whose real name is Belcalis Almanzar, said recently on Instagram that things weren't working out between her and fellow rapper Offset, though they're still good friends and business partners. The couple got married in September 2017 and welcomed a baby girl in July.
After issuing protective orders for the alleged victims, the judge told Cardi "no contact" includes making threats or comments on social media about the bartenders.
Cardi B, her feet bare beneath a voluminous red Dolce & Gabbana gown, was seen leaving the party with what appeared to be a bump on her head.