Britney Spears New York - Arabstoday Britney Spears looked stunning as she walks the red carpet at the “City of Hope Gala” at Exchange LA in Los Angeles. The 30 year old singer opted for a glamorous backless silver Halston dress and accessorised with YSL shoes, and Alexis Bittar jewellery. She finished her look with smoky make up and wavy hair style. The singer and X Factor judge was joined at the event by her fiancé Jason Trawick.