LaBelle or LuPone
I believe the answer is:
patti
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">labelle or lupone</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for patti that I've seen before include "Adelina -, nineteenth to twentieth century sopr." , "Adelina --, opera singer (1843-1919)" , "Italian singer" , "Soprano" .)