Listen to Oh Nobody Knows the Trouble I've Seen online. Oh Nobody Knows the Trouble I've Seen is an English language song and is sung by Smashtrax. Oh Nobody Knows the Trouble I've Seen, from the album Spiritual Hymns & Gospel Favorites: Traditional Songs of Worship, was released in the year 2016. The duration of the song is 2:16. Download English songs online from JioSaavn.