By Caroline Gaspich Rhianna has debuted her dramatic new hair transformation stepping out with a fresh new blonde bullet-style pixie haircut for the spring. The 36-year-old R&B singer turned heads this week as she cut and bleached off her long locks and showcased her brand new edgy look this week as she headed into a business meeting in Santa Monica, California. During the meeting, Rhianna looked comfy and chic as she stepped out in an oversized black jersey featuring red-and-white text. The Diamonds hitmaker paired the stylish outfit with a trendy blazer overtop with buttons and a white trim….