Auf Deutch, "Die reinste freude ist die shadenfreude.""The purest joy is the joy in others' misfortune."
Please don't patronize Rush by assuming that he could only know the word if he read it here.
You can however note that German spelling is phonetic--but that the rules of German pronunciation differ from those of English. The Germans pronounce an "e" at the end of a word, and it sounds as "ah." And the German pronunciation of "a" is always as the English would pronounce "a" as in "father".
Rush anglicized the pronunciation, making the trailing "e" silent and pronouncing the "a" (as I recall) more like "ay" than "ah".
"shay-den-froyd" rather than the German "shah-den-froy-dah"