Britney Spears: Pre 'X Factor' Lunch in West Hollywood!

Britney Spears rocks a studded sweater while leaving a hotel on Thursday (December 6) in West Hollywood, Calif.

The 31-year-old singer arrived for a quiet lunch with friends, holding a Starbucks smoothie as she got out of her car.

PHOTOS: Check out the latest pics of Britney Spears

Earlier in the week, The X Factor judge celebrated her 31st birthday.

In case you missed it, check out Britney‘s latest music video with Will.i.am for their hit new collaboration “Scream and Shout” now!

10+ pictures inside of Britney Spears out for lunch…