Grammy Award-winning singer Amy Winehouse was due to be questioned by police on Friday over an alleged assault, Reuters UK is reporting, thus reminding the public of previous legal problems which overshadowed her music career.

Amy Winehouse may have the queen of the Grammy Awards this year, but her personal life continues to be troubled. Her drug addiction and subsequent chaotic public appearances have made many-a-headline around the world, while her husband is in jail on charges of assaulting a man.

Winehouse, 24, was due to report to a police station on Friday to face questions over an alleged assault, her spokesman said.

“Amy Winehouse will be voluntarily attending a London police station today by appointment with the police,” her spokesman said. “We understand that she will be questioned in connection with an alleged incident in Camden in the early hours of April 23, 2008.”

The incident that reportedly took place last week concerns a 38-year-old who allegedly suffered at the hand of the slim singer. Winehouse punched the man in the street during a night out, according to newspaper reports.

Reuters adds that her police visit came on the same day husband Blake Fielder-Civil appeared at Snaresbrook Crown Court. He is charged with attempting to pervert the course of justice and inflicting grievous bodily harm. The 25-year-old denies the charges. While Winehouse had been due to attend her husband’s hearing, she did not appear.

Winehouse checked herself into a rehabilitation clinic in London earlier this year, following the emergence of a controversial video showing her consume drugs. While she was granted a visa that would have allowed her to fly over the Atlantic and attend the Grammy Awards ceremony in LA, it was released tardily.

It had been previously speculated that she would be denied the visa by the US Embassy because of her past drug problems.

Last October, she was arrested in Norway for possession of cannabis. She paid a fine and later said she had not been aware that under Norwegian law, paying the fine is equivalent to pleading guilty.

A judge agreed to postpone her court hearing, which was supposed to take place on 29 February in Norway, because her jailed husband Fielder-Civil must also attend the hearing.