videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including Stewart and Colbert singing "Greatest Strongest Country" LIVE @ Rally to Restore Sanity and/or Fear, Kid Rock, Sheryl Crow together with The Roots LIVE @ the Rally to Restore Sanity and/or Fear