This comes after Cardi B recently announced she was splitting from Offset as they'd "grown out of love", and in a recent performance she rapped about getting a divorce.
Without Migos, Cardi will headline alongside Tash Sultana, Joey Bada$$, Peking Duk and more.
Bay Dreams kicks off at The Mount on January 1 with a warm-up party featuring Shapeshifter, Mr Carmack and L.A.B before launching into the main day on January 2.
Meanwhile, the Nelson party kicks off on January 3 at Trafalgar Square with UK rapper Ocean Wisdom; world renowned DJs Stanton Warriors and electronic maestros Hybrid Minds, who sold out their entire previous NZ run.
The main festival day on January 4, includes Cardi B, Tash Sultana, Sticky Fingers, Peking Duk, $uicide Boy$ and Pnau. Other must-sees include Macky Gee, Katchafire, Home Brew and an array of exciting acts on the Hospital Records stage.
For full details and lineups, see Baydreams.co.nz.