When she's not writing, recording and performing her slew of hit songs on the world stage, Lady Gaga can often be found working hard on her Haus Laboratories cosmetics brand.And on Tuesday the pop superstar and entrepreneur took to her Instagram page and shared a couple of photos of herself bunkered down at her company's office.'Late night at the lab... #startup,' the New York City native, 34, headlined one snap of herself sitting at the end of a long, 12-seat table at the office.
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