Lesbian US singer Beth Ditto has been arrested and charged with disorderly conduct, police have said.

The 32-year-old, whose real name is Mary Beth Patterson, was reportedly detained after being denied service at the Bungalo Bar in Portland, because she appeared to be drunk.

She left the bar and then “walked out in the middle of the street, threw off her shoes and purse and screamed Obama! Obama!”, a source told Willamette Week.

This alleged behaviour reportedly alerted officers and 10-12 police cars arrived at the scene on Friday night.

A Reddit website user described the singer as being “completely blackout drunk challenging people to fights” when she was earlier in the bar.

Ditto has since been released from a Portland police station pending a future court date. No bail was posted.

She faces a charge of second degree disorderly conduct, a Class B misdemeanour punishable by up to six months in jail and a fine up to $2,500 (£1,600).