CREATE TABLE table_52500 ("Film" TEXT, "Song" TEXT, "Year" FLOAT, "Music Director" TEXT, "Language" TEXT)

Tell me the song with year before 2013 and music director of yuvan shankar raja and film of billa ii
SELECT "Song" FROM table_52500 WHERE "Year" < '2013' AND "Music Director" = 'yuvan shankar raja' AND "Film" = 'billa ii'
SELECT "Song" FROM "table_52500" WHERE "Film" = 'billa ii' AND "Music Director" = 'yuvan shankar raja' AND "Year" < '2013'