She may have just launched a music career, but now Taryn Manning's going to have to face a different sort of music.

The 8 Mile star has been charged with misdemeanor assault after allegedly roughing up her personal assistant at the posh Dream Downtown Hotel in Manhattan early Thursday.

Police sources tell E! News that the incident occurred at approximately 5 a.m. yesterday when the 33-year-old Manning punched and kicked the 23-year-old woman—who's the thesp's hairdresser—causing scratches and bruises to the latter's face and neck. She also allegedly grabbed the victim by the throat.