What can i wear to avoid looking overdressed,I have to go for a job interview?

wear a black pencil skirt teamed with a white shirt. the skirt should be knee length and the shirt should be plain. wear a black waistcoat above the shirt to look smart, trendy and confident. wear your hair in a tight ponytail just below the crown. do not wear any accessories except for a watch. wear black high heels. lo! you are ready for the interview. now just look confident(not arrogant) and walk in to your interview.