Jessie J Goes Back To Black Strands. Over the last few years Jessie J has done some rather interesting things to her mane. From long hair with blunt bangs, to dying her strands purple, to blue and even platinum blonde. Now it appears the singer is taming things down with her new jet black pixie cut. Based on her bold changes in the past, we have a feeling that this look won’t last for long. Check out Jessie’s newly dyed black pixie after the drop.