Listen to Diamonds Are a Girl's Best Friend (From "Gentlemen Prefer Blondes") online. Diamonds Are a Girl's Best Friend (From "Gentlemen Prefer Blondes") is an English language song and is sung by The Broadway Playbills. Diamonds Are a Girl's Best Friend (From "Gentlemen Prefer Blondes"), from the album The Best of Broadway Theatre Performances 2015, was released in the year 2015. The duration of the song is 3:21. Download English songs online from JioSaavn.