John Gurney
... that Metropolitan Opera star John Gurney performed "The Star-Spangled Banner" for sporting events in which his son, racing driver Dan Gurney, competed?
... that <a href="./Metropolitan_Opera" id="mwA1s" rel="mw:WikiLink" title="Metropolitan Opera">Metropolitan Opera</a> star <b id="mwA1w"><a href="./John_Gurney_(bass-baritone)" id="mwA10" rel="mw:WikiLink" title="John Gurney (bass-baritone)">John Gurney</a></b> performed "<a href="./The_Star-Spangled_Banner" id="mwA14" rel="mw:WikiLink" title="The Star-Spangled Banner">The Star-Spangled Banner</a>" for sporting events in which his son, racing driver <a href="./Dan_Gurney" id="mwA18" rel="mw:WikiLink" title="Dan Gurney">Dan Gurney</a>, competed?