Listen to Let’s Do It (Let’s Fall In Love) online. Let’s Do It (Let’s Fall In Love) is an English language song and is sung by Bing Crosby and The Dorsey Brothers Orchestra. Let’s Do It (Let’s Fall In Love), from the album Pennies From Heaven - The Essential Collection (Digitally Remastered), was released in the year 2009. The duration of the song is 3:22. Download English songs online from JioSaavn.