Top of the pops and stocks
"The top left chart shows the movement of the S&P 500 for a
rolling one year period. The bottom two charts show the time series and
histogram of daily returns for the period -- the more vertical lines
there are on the bottom left chart, the more volatile the market was at
that time. On the top right is a music video for each year chosen to be representative of the rank of that year's average beat variance."