Metallica's third proper bass player after Cliff Burton and Jason Newsted deserves all of our praise. First, he's been in the world's biggest metal band since 2003, making him their longest-serving bassist.
Second, he's an absolute monster bass player, powering through funk, rock and metal styles with ease and panache. Third, he produced a documentary, Jaco, in 2012, telling the tragic story of Jaco Pastorius. Finally, he bought Jaco's famous ‘Bass Of Doom’ and restored it to the Pastorius family.