Mo Pop Festival
... that during the 2015 Mo Pop Festival in Detroit, heavy rainfall overwhelmed the park's drainage capabilities and formed a standing body of water nicknamed "Lake Mo Pop"?
... that during the 2015 <b id="mwag"><a href="./Mo_Pop_Festival" id="mwaw" rel="mw:WikiLink" title="Mo Pop Festival">Mo Pop Festival</a></b> in <a href="./Detroit" id="mwbA" rel="mw:WikiLink" title="Detroit">Detroit</a>, heavy rainfall overwhelmed the park's drainage capabilities and formed a standing body of water nicknamed "Lake Mo Pop"?