James clearly has a sense of humor, either that or he's very impressed with his ability to outdo pretty much everyone with his use of "yeah" (The Beatles included).

Actually, it was a technician who put together a montage of all of his Metallica yeahs, but he must have had Hetfield's permission, because, well, who would want to piss James Hetfield off?

Hear all his countless yeahs at loudwire.com.