Lindsay Lohan was back in LA yesterday after a blink-and-you'll miss it trip to NYC to make a special appearance in a music video for Pharrell Williams' group N.E.R.D. She and Samantha Ronson went East to make cameos in the video for the song, "Everybody Nose," where they star as. . . girls waiting in a club's bathroom line to go do cocaine. Maybe she thinks last summer's incidents are funny now, but we're not sure enough time has passed for her legal troubles to be a joke.