Babyshambles singer Pete Doherty has been fined £750 after he admitted assaulting a BBC reporter in March.
Pete Doherty is receiving treatment for drug addiction
The star pleaded guilty at Thames Magistrates' Court to kicking a microphone out of her hand outside the same court after a separate appearance.
In a statement, the 27-year-old said: "If I hurt this lady I'm sorry."
The star, who is currently being treated for drug addiction, was also ordered to pay £250 compensation and another £200 in court costs.
He had previously pleaded not guilty to a charge of assault by beating after he kicked out at Radio 1 Newsbeat's Trudi Barber.
His defence lawyer, Sean Curran, said Doherty changed his plea after watching television footage of the attack.
Prosecutor Sirah Abraham said Ms Barber's hand had been hurt in the incident.
She said Ms Barber had suffered pain to her hand which spread to her shoulder. A doctor prescribed her painkillers but she lost sleep from the pain.
During a police interview Doherty refused to answer any questions.
He did apologise but added Ms Barber was a member of the "harassing scum of press".
Magistrate Helen Skinner said: "Referring to the press as scum does no one any favours. You were obviously courting publicity judging by your somewhat extravagant behaviour outside the court.
A microphone was kicked through the air
"People in public life have a responsibility to behave and be a good role model to others."
Doherty, who is dating model Kate Moss, told the court he was not able to pay the fine on the day as he only had 27p on him.
He has been ordered to make the payment within seven days.