Three things in life are certain: death, taxes and that Metallica will dominate the charts with every chance they get. Billboard has now reported that The Metallica Blacklist, the 53-track covers album of only “Black Album” songs, has peaked at No. 7 on the Top Album Sales chart for the week ending on Oct. 7.In a truly impressive feat, Metallica reached this mark in the second week after the star-studded tribute record was released with a…