YouTube star Kid Kypree got hit with a felony domestic violence charge after being caught on camera hitting his girlfriend … and she told police the incident started with an argument about “something stupid.”

Violent viral video shows a man who cops say is Kid Kypree beating the crap out of a woman in a bedroom … punching her multiple times in the head and ribs in a vicious beatdown.

Kid Kypree — government name Kypree Darnell Taylor — was arrested in Michigan for aggravated domestic violence, a felony … according to online records.

The social media star’s girlfriend told police they were arguing about “something stupid” before Kypree hit her in the face … according to the arrest affidavit, obtained by . Cops say the woman had significant swelling under her eye and on her cheek.

Police say the incident happened Sunday in Battle Creek … and the town’s police sergeant tells us Kypree fled the scene on foot after cops were called, but was found nearby and arrested, and booked into Calhoun County Jail.