Walter Vinson
... that the American Memphis blues guitarist, singer and songwriter Walter Vinson co-wrote the blues standard, "Sitting on Top of the World"?
... that the American <a href="./Memphis_blues" id="mwH1s" rel="mw:WikiLink" title="Memphis blues">Memphis blues</a> guitarist, singer and songwriter <b id="mwH1w"><a href="./Walter_Vinson" id="mwH10" rel="mw:WikiLink" title="Walter Vinson">Walter Vinson</a></b> co-wrote the <a href="./List_of_blues_standards" id="mwH14" rel="mw:WikiLink" title="List of blues standards">blues standard</a>, "<a href="./Sitting_on_Top_of_the_World" id="mwH18" rel="mw:WikiLink" title="Sitting on Top of the World">Sitting on Top of the World</a>"?