For example, in the past few days we've seen from a number of cities across the United States. These are among the estimated several thousand videos that exist as a part of this trend.
(Note: Some contain adult language)
These are just a few, and you've probably seen ones for other cities floating around (drop them in the comments!). California seems to be particularly well represented, and the New York take, which first went viral last week, has been seen upwards of 2.6 million times.