Britney Spears was spotted leaving a dance studio in Calabasas, California on Monday (February 25, 2013). The 31-year-old songstress was dressed casually in an orange-and-white T-shirt paired with a pair of tracksuit pants as she got back into her tiny Smart car. Make-up free Britney Spears once again showed off her new brunette hair colour, which the “Baby One More Time” hitmaker debuted at Elton John's AIDS Foundation Oscar Viewing Party at West Hollywood's Pacific Design Center. She tied her tresses back into a ponytail and hid her tired eyes behind a pair of sunglasses.