Who are thebmix artists when tears for fears is artist 1 and eric prydz is artist 2?
create table table_23649244_1 (mix_artist varchar, artist_1 varchar, artist_2 varchar, PRIMARY KEY (mix_artist))
select mix_artist from table_23649244_1 where artist_1 = "tears for fears" and artist_2 = "eric prydz"