A man accused of assaulting pop star Leona Lewis is not fit to attend court, a judge was told today. Peter Kowalczyk, 29, was charged with striking the Bleeding Love singer during a book signing. A hearing at City of Westminster Magistrates' Court today heard he has been sectioned under the Mental Health Act and is being examined by psychiatrists. After a short hearing of legal argument, District Judge Daphne Wickham adjourned the case until November 23 at the same court. Kowalczyk did not appear in the dock and remains in secure accommodation at Lambeth Hospital in south London.