Jason Newsted — American Musician born on March 04, 1963,

Jason Curtis Newsted is an American metal musician, known for playing bass guitar with the bands Metallica (in which he did occasional lead vocals), Voivod and Flotsam and Jetsam. Joining Metallica in 1986 after Cliff Burton's death, Newsted remained a member until 2001, making him the band's longest-serving bassist. After he left Metallica, he continued with his project Echobrain, played with Ozzy Osbourne and joined heavy metal band Voivod. Newsted uses the pseudonym Jasonic, which serves as both his alias in Voivod and the name of his music publishing company. He is also the founder of the Chophouse Records studio and label based in California. From 2012 to 2014 he played in his self-titled band Newsted, in which he provided lead vocals as well as bass... (wikipedia)

To look for some kind of insight or meaning in pop songs is not really - well there's plenty of other places where you should probably look first before you start looking for it in a pop song.
When I came into Metallica, I had to do justice to Cliff's work, but I also had to put my own signature on it. No one could be Cliff Burton; Cliff Burton was the Jimi Hendrix of bass.
Metallica is going to be one of those bands you look back on in the year 2008, that people will still listen to the way I still listen to Zeppelin and Sabbath albums.
A couple years ago I was going to back off and actually thought about retiring, but it keeps calling me back, and I'm going to keep going back as long as it calls me. I really think it has something to do with the good vibes that I feel I've spread through my performance and through the time that I've spent with fans.
I ended up gettin' a little Gibson amp and a bass, because of Gene Simmons of Kiss. Myself and three other kids would pretend to be Kiss - I liked Gene the best.