Have Mercy – Weak At the Knees (cover by: Eric Snow) Aug 15, 2015 Black Magic, Cover Have Mercy, Cover Heavy, Cover Heavy Metal, Cover Mercy, Witchburner + Bonus, Open D Tuning. I learned it by ear. I suck. Like 0 Thanks! You've already liked this « Have Mercy – Howl (Bass Cover) » Have Mercy – This Old Ark (Acoustic Cover)
