My buddy's an Elvis Tribute artist (they don't want to be called impersonators). My friend's one of the best around. google: Jeff LaJess at my space with audio clips. Jeff LaJess at youtube too singing Poke Sally Annie.
There is a guy on my route to work who walks his dog at 7:50ish each morning who is an Elvis impersonator.
At least I hope he is.
I just about got into a car accident the first time I saw a guy who looked like Elvis walking his dog.