A 30-year-old woman has pleaded guilty to smashing a window at the home of music mogul Simon Cowell earlier this year.

Leanne Zaloumis confessed to the charge at Isleworth Crown Court in west London today (July 6) and explained that she threw a brick at Cowell's bathroom window on the evening of March 24, 2012.

Cowell admitted he was home and watching television at the time, and heard a loud noise coming from inside his house.

The Press Association has reported that although Zaloumis pleaded not guilty to other counts of affray and burglary, she has been ordered not to contact Cowell and can not go within 300 yards of his property in London's Holland Park.

In addition to breaking his window, she was also accused of yelling at Cowell from a nearby rooftop.