"Everyone else wanted to be Elvis; I wanted to be Scotty," Rolling Stones guitarist Keith Richards once told music writer James L. Dickerson. He's referring, of course, to Scotty Moore, the finger-picking phenomenon who has long been considered rock's first lead guitarist. Mr. Moore, who turns 83 today, was Elvis Presley's sizzling sideman from 1954 through the mid-'60s. He combined elements of country, western, blues and R&B to create the signature sounds you've heard on countless classic recordings: "Hound Dog," "Jailhouse Rock," "That's All Right," "Good Rockin' Tonight," and "Mystery Train," to name a few.