This multi-series chart compares the total streams and monthly listeners for the top 20 Spotify artists. Green bars represent total streams in billions on the left axis, while a blue line and circles show monthly listeners in millions on the right axis. Built with React and D3 v5, the visualization loads CSV data and uses `scaleBand`, `scaleLinear`, `axisLeft`, `axisBottom`, and `line` to render the SVG. Artist labels are rotated for readability.