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We kid, we kid!

Today we spotted hot mama Nicole Richie leaving the gym (what else is new?) and the reformed party princess/reality TV starlet flashed a tiny smile as she trotted back to her car. It seems like she wasn't feeling so hot when she woke up this morning, as she tweeted, "Being awake is overrated." Geez, wonder how hubby Joel Madden deals with her mood swings?