Los Angeles (CNN) -- A man accused of stalking television actress and singer Selena Gomez, 19, pleaded not guilty Thursday, according to a statement from the Los Angeles County district attorney's office. Thomas Brodnicki, 46, has been charged with one count of stalking the teen star, who is thought to be the girlfriend of Canadian pop singer Justin Bieber. Authorities say Brodnicki allegedly stalked Gomez this year, between July and October. He is expected to appear for a preliminary hearing on November 16. If convicted, Brodnicki could face a maximum of three years behind bars, the statement said. He also now faces a court-issued protective order, requiring Brodnicki to keep away from Gomez for a period of three years. Bail has been set at $150,000, the statement said. Brodnicki's attorney could not be immediately reached for comment.
Thomas Brodnicki has been charged with one count of stalking the teen star . Brodnicki, 46, has pleaded not guilty . Gomez is thought to be the girlfriend of pop star Justin Bieber .