Mustaine recalls how he spent the bus ride back to California after being fired by Hetfield.
In honor of Month Of Giving, the band is streaming a complete live show on the group's YouTube channel.
The METALLICA frontman made an appearance during the Little Kids Rock' annual benefit.
James and Kirk played the National Anthem before tip-off during the Western Conference showdown.
The performance was part of this year's BlizzCon, the first virtual version of Blizzard's games convention.
The Metallica frontman paid tribute to the head of their first label, who died Sunday.