CREATE TABLE table_3835 ("Song title" TEXT, "Artist" TEXT, "Decade" TEXT, "Choreographer" TEXT, "Rating" TEXT, "Difficulty  ( Out of 7 ) " FLOAT, "Character" TEXT, "DC2 Character" TEXT, "DC3 Venue" TEXT, "Crew" TEXT)

List all artists with choreographer Marcos Aguirre and a simple rating.
SELECT "Artist" FROM table_3835 WHERE "Choreographer" = 'Marcos Aguirre' AND "Rating" = 'Simple'
SELECT "Artist" FROM "table_3835" WHERE "Choreographer" = 'Marcos Aguirre' AND "Rating" = 'Simple'