Celebrating the 50th Anniversary of the 'Sly and The Family Stone' performance at Summerfest

Summary: Piet and Jordan revisit the Sly and The Family Stone performance and unexpected crowd that filled the Summerfest grounds 50 years ago. Full article here: <a href="https://bit.ly/2WLluVr" rel="noopener">https://bit.ly/2WLluVr</a>