Question: What is every song title for the rock genre and Guitar Hero as original game and the artist is Queens of the Stone Age?
Schema: create table table_21500850_1 (song_title varchar, artist varchar, genre varchar, original_game varchar, PRIMARY KEY (song_title))
SQL: select song_title from table_21500850_1 where genre = "rock" and original_game = "guitar hero" and artist = "queens of the stone age"