Lauren Sanchez doesn't need to wait until Wednesday to wear pink ... pulling off a Barbie-chic dress while enjoying an island vacay to kick off her new year.
The former entertainment reporter was walking around Gustavia, St. Barts, earlier this week in the form-fitting dress ... cut out at the sides, revealing her tan skin underneath.
The dress ends pretty high on her legs ... more of a summer number than one worn in the dead of winter -- though St.