The best-selling album of 1957 in United States is a soundtrack MY FAIR LADY (ORIGINAL CAST).
Rank Artist Album Released
1
SOUNDTRACK
MY FAIR LADY (ORIGINAL CAST)
1956
2
TENNESSEE ERNIE FORD
HYMNS
1957
3
SOUNDTRACK
OKLAHOMA!
1955
4
SOUNDTRACK
AROUND THE WORLD IN 80 DAYS
1957
5
SOUNDTRACK
THE KING AND I
1956
Source: Billboard