CREATE TABLE table_28209 ("Celebrity" CLOB, "Known for" CLOB, "Age" FLOAT, "Professional" CLOB, "Series" FLOAT, "Place" CLOB, "Dances" FLOAT, "Highest score" FLOAT, "Lowest score" FLOAT, "Aggregate" FLOAT, "Average" CLOB)

What was the aggregate for the celebrity who was known for being a singer and had 7 dances?
SELECT "Aggregate" FROM table_28209 WHERE "Dances" = '7' AND "Known for" = 'Singer'
SELECT "Aggregate" FROM "table_28209" WHERE "Dances" = '7' AND "Known for" = 'Singer'