India, March 23 -- A woman celebrating her 75th birthday aboard a New York City subway has caught the internet's attention after sharing a video of herself asking fellow passengers to sing "Happy Birthday" with her. While the train appeared crowded, only a couple of people eventually joined in, making the moment both awkward and touching for viewers online.

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The video was posted on Instagram by Linda Marcus Smith, who recorded herself speaking to passengers inside a packed subway carriage. In the clip, she addresses the people around her and asks them to participate in a spontaneous birthday song.

Speaking cheerfully to the passengers, she s...