Listen to Knee Deep (Originally Performed By Zac Brown Band) online. Knee Deep (Originally Performed By Zac Brown Band) is an English language song and is sung by Modern Country Heroes. Knee Deep (Originally Performed By Zac Brown Band), from the album Country Karaoke Mega Hits Now! - Summer 2012, was released in the year 2012. The duration of the song is 3:18. Download English songs online from JioSaavn.