I suppose when your dad is in Metallica you'll learn a thing or two, huh?
12 year old Tye Trujillo is the son of Metallica four (sometimes five) stringer Rob Trujillo, and the little nipper was tapped by Korn to fill in for Fieldy on their current tour.
Holy smokes.
I'm 3x times this kids age and he plays me under the table.

And for whatever reason, his bass only has 3 strings. Those fingers will grown eventually, kid.