SELECT artist_name FROM artist WHERE country = "UK" INTERSECT SELECT T1.artist_name FROM artist AS T1 JOIN song AS T2 ON T1.artist_name = T2.artist_name WHERE T2.languages = "english"
Return the names of singers who are from UK and released an English song.
CREATE TABLE artist (
    artist_name VARCHAR
)

CREATE TABLE song (
    artist_name VARCHAR,
    languages VARCHAR
)