WHO: Britney Spears at the premiere of "The X Factor" Season 2 on September 11, 2012
WHAT SHE WORE: blue Stella McCartney dress with orange/black/white ornate floral print
BUY: Stella McCartney Barnes ornate floral long sleeve dress at Farfetch for $1165 or for $1.324 at Matches or for €1,095 at Net-a-Porter Global
photo: Adriana M. Barraza / WENN