Katherine-McPhee-hairstyles.jpg – Lester Cohen for Getty Images Long hair on a long face is tricky. The long hair can elongate an already long face. If you must have long hair, add in long layers and bangs to downplay a large forehead. This look on Katharine McPhee (here she is with her trademark brown hair) is great for a long face. The bangs really help visually shorten the length of the face.