Singer Kat Dahlia -- Arrested for DUI, Allegedly Cussed Out Cop

"Gangsta" singer Kat Dahlia was busted for DUI early Tuesday morning in Miami -- and according to the police report, she cussed out the arresting officer ... and even resisted arrest.

According to the report, Dahlia was pulled over for speeding at roughly 3AM -- and when the officer approached her 2013 Nissan, a strong odor of alcohol emanated from the vehicle.

The officer claims Dahlia's speech was heavily slurred as well, so the officer asked her to exit her vehicle -- at which point, Dahlia allegedly began to grow belligerent.

The report says the officer asked Dahlia to complete a field sobriety test, and she refused, cussing at the officer instead. The report doesn't specify what cusses she used, but safe bet ... she shouldn't have used any.

Dahlia was then placed under arrest, but allegedly resisted by refusing to put her hands behind her back. The officer had to force Dahlia's hands in order to cuff her.

Dahlia was subsequently transported to a nearby police station and booked for misdemeanor DUI and resisting arrest -- but hey, at least her song's catchy.