We at Betabeat are avid followers of Lindsay Lohan’s Twitter feed. So when we saw a LiLo tweet promoting taxicab disrupter Uber’s services and offering a promo code, we just had to know: was this the result of an official partnership between the startup and the star, or was Lindsay up to something shady? It turns out the latter is true — and Ms. Lohan isn’t the only celebrity pimping out Uber to her followers so that she can get discounts on the rides herself. Neil Patrick Harris and Snoop Dogg (or Lion or Walrus or whatever he’s going by now) are guilty, too.