Question: What week #(s featured Sara Bareilles as the original artist?
SQL: SELECT "Week #" FROM "1-21501564-1" WHERE "Original artist" = 'Sara Bareilles';

Question: What week # featured First Solo as the theme?
SQL: SELECT "Week #" FROM "1-21501564-1" WHERE "Theme" = 'First Solo';

Question: How many weeks featured Duffy as the original artist?
SQL: SELECT COUNT("Theme") FROM "1-21501564-1" WHERE "Original artist" = 'Duffy';

Question: Who was the originally artist when Jasmine Murray was Selected?
SQL: SELECT "Original artist" FROM "1-21501564-1" WHERE "Result" = 'Selected';