Listen to We'll Be Sweethearts in Heaven online. We'll Be Sweethearts in Heaven is an English language song and is sung by Lester Flatt and Earl Scruggs And The Stanley Brothers. We'll Be Sweethearts in Heaven, from the album Lester Flatt & Earl Scruggs And The Stanley Brothers Selected Sides 1947 - 1953, was released in the year 2005. The duration of the song is 2:37. Download English songs online from JioSaavn.