This stacked bar chart visualizes the distribution of top genres among the most popular songs across different years, with Dance pop consistently dominating as the most frequent genre. Built using Vega-Lite API and D3.js v5, the visualization groups and counts songs by artist and genre, encoding these aggregates as stacked bars on an ordinal x-axis and quantitative y-axis. The data comes from a CSV file fetched via D3’s `csv` function from a GitHub gist containing yearly music trends. Tooltips display the count, genre, and artist for each segment.