Maybe she was having bad "Dreams." The lead singer of rock band The Cranberries allegedly assaulted a female flight attendant on an overnight flight from Kennedy Airport to Ireland — and she head-butted a cop who tried to arrest her, authorities said. Dolores O’Riordan, 43, was arrested as soon as the plane landed at Shannon Airport early Monday, cops say. She was released from police custody later Monday and no charges were filed, the BBC reported. She had complained of being ill while at the police station, according to the report.