Listen to (You Don't Know) How Glad I Am (2002 - Remaster) online. (You Don't Know) How Glad I Am (2002 - Remaster) is an English language song and is sung by Nancy Wilson. (You Don't Know) How Glad I Am (2002 - Remaster), from the album Nancy Wilson Love Songs, was released in the year 2006. The duration of the song is 2:37. Download English songs online from JioSaavn.