Lorde kept her hair natural as she rocked a mid-blue column dress for her red carpet appearance This image appears in the gallery:MET Gala Ball 2015 In Pictures - All The Dresses From The Red Carpet 24. Lorde kept her hair natural as she rocked a mid-blue column dress for her red carpet appearance Picture: PA 24 images See the full gallery: MET Gala Ball 2015 In Pictures - All The Dresses From The Red Carpet