Britney Spears lingerie skimpy lace nightie

Pajama mama. Britney Spears apparently couldn't wait till she got home to wear her new lingerie! Photo: Whittle, Splash News

Oh, Britney...

A week after wowing us on "Glee," the pop princess suffered a style setback: being caught shopping in a next to nothing negligee, the Daily Mail reports.

Though the perfume diva got off to a good start by hitting the shops in jeans, she soon emerged from the Only Hearts lingerie boutique in an ultra-short, lace-trimmed gray slip paired with a lilac cardigan and blue boots, according to the paper.

Um, you break it, you buy it, honey.

So did the Candie's model/designer have an urgent slumber party to attend, or did she get Cheeto dust all over her normal clothes? Your guess is as good as ours.

But in the meantime, we'll be keeping a close eye on Brit-Brit next time she pops into Victoria's Secret!

Click here for a roundup of sexy pajama-styles (for indoor-wear only!)

Speaking of celeb style transformations, check out James Franco's cross-dressing magazine cover.