Fashion fail: Britney Spears was pictured on Thursday shopping at an Old Navy store in Los Angeles

Ready for winter in a short sleeved turquoise polo neck, Britney bizarrely chose to team the cotton top with a pair of stone coloured short shorts.

With the bottom half of her outfit adhering to the sunny Californian weather, a pair of grey suede peep toe heels completed her look.

The mother-of-two wore her blonde locks, which feature highlights of blue up in a messy bun, and went heavy on the eye make-up whilst accessorising with pieces of silver jewellery.

Spears beamed as she left the store with several bags in hand, no doubt full of gifts for her boys Sean and Jayden Federline.

What was she thinking? Britney stepped out in a turquoise polo neck jumper and short shorts

Not her best look: The 30-year-old completed her look with peep toe heels and wore heavy eye make-up

Happy shopper: Britney beamed as she left the store with several carrier bags in hand

Currently enjoying her latest career venture on the US version of The X Factor, Britney and her fellow judges, Simon Cowell, Demi Lovato and LA Reid, are riding high on the success of the show.

Figures reveal that Wednesday’s show attracted 8.2 million viewers in its first hour and more than 10 million in its second, compared to The Voice which aired at the same time and only managed to attract 5.5 million viewers.

Showing off her highlights: The Toxic singer wore her hair up in a messy bun

Gifts for her boys: The pop sensation no doubt picked up various bits and bobs for hers sons Sean and Jayden

This compares to the previous Wednesday when the premiere of the second series only scored an average of 7.5million viewers when it aired between 8 and 9pm.

The lack-lustre rating meant it lost out to The Voice which attracted an average of 10.5 million viewers.

When the first series of The X Factor USA premiered on September 21st 2011, 12.5 million viewers tuned in.

Busy lady: Britney is currently enjoying her time as a judge on the US version of The X Factor

The latest figures will hopefully be reassurance to Cowell that his recent shake-up, which saw him dismiss Paula Abdul and Nicole Scherzinger from the panel, will help make the show successful.

The music mogul is likely to be delighted about the victory, as he previously blasted NBC bosses for moving The Voice’s time slot so it directly competed with The X Factor USA.

And enjoying watching herself on her TV screen, on Wednesday Britney tweeted: ‘Another #xfactor week gone bye. Single tear! SO happy with how these episodes turned out :)’.

On the winning team: This week The X Factor proved victorious in the TV ratings when they bagged 5 million more viewers than The Voice