Jennifer Lawrence’s long black hair is rather startling. Jennifer debuted her black middle parted, wavy hair and her curvy figure on the Tonight Show with Jay Leno. She was there to discuss her new role in ’ The Silver Linings Playbook’. After getting used to seeing her with rich auburn hair in the ‘Hunger Games’ and as a blond in ‘Winter’s Bone’-we are still unsure about black. Take a look and decide for yourself.