Britney wore a stripey Christmas cardie, fedora hat and glasses as she walked along looking sad and crossing her arms in a defensive pose

It is more usual to see Britney baring as much flesh as possible as she has shown in a series of revealing outfits in which she has partied non-stop.

But Britney has recently discovered her 16-year-old sister is pregnant and has vowed to support her.

The 26-year-old however has been locked in her own bitter custody battle over her sons Sean Preston, 2, and Jayden James, 1, after recently losing primary custody to ex-husband Kevin Federline.