Among the countless serendipitous subway rides that must go down daily in New York City, one local artist's MetroCard has made her a viral sensation, thanks to Jay-Z. The rapper released a documentary short Tuesday on his eight-show engagement that marked the opening of Brooklyn's Barclays Center. On the eve of his final performance, one clip shows Jay hopping a train en route to the grand finale. Sitting next to what countless outlets have dubbed an "adorable old lady," Jay interacts with the woman in question as she puzzles out his identity. Someone (especially in New York) who doesn't know who Jay-Z is!

Full story: Jay-Z's sweet subway exchange makes a star of NYC artist | Beyonce, Jay-Z are highest earning celeb couple