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Did you have a little too much fun, Miss Moss?

Kate Moss stepped out in London last night looking a little worse for wear, and we have to wonder whether her appearance was due to too much partying or a bad case of jet lag. Either way, we can't say anything about her outfit! Her black fringe dress, which she paired with sky high stilettos and a yellow clutch, is absolutely fierce!

The former Calvin Klein catwalker hit up The Serpentine Gallery to catch her hubby Jamie Hince perform with his band The Kills, and after the gig, the couple grabbed a late night bite at Loulou's restaurant in Mayfair.

The lovebirds just returned from a vacation on the Spanish islands of Formentera and Ibiza, where the 38-year-old British beauty was snapped sporting a noticeably fuller figure as she frolicked in her bikini. Could she have a bun in the oven?

Attending rock concerts and indulging in midnight meals isn't exactly typical behavior for a pregnant woman, but this is Kate Moss we're talking about! She is anything but traditional, so only time will tell if she's expecting a delivery from the stork!