The legendary blonde in question is Marilyn Monroe, an iconic American actress, model, and singer. She was a major sex symbol of the 1950s and 1960s and is still considered one of the most famous women of all time. Her career spanned over two decades and she starred in some of the most iconic films of the 20th century, such as 'Gentlemen Prefer Blondes' and 'Some Like it Hot'. Monroe's beauty, charm, and talent made her a legend that continues to be remembered today.