Tattoos of Elvis

A woman goes into a tattoo parlor and asks for a picture of Elvis be tattooed high up on her left thigh. The tattoo guy complies, but when he's done, the woman looks at the result and says "That doesn't look like Elvis at all!" The guy says, "I can't do anything to remove it, but I could try again on the other thigh". The woman agrees, but when all is done, she thinks that the new tattoo looks nothing like Elvis, either and refuses to pay. The tattoo artist makes a proposal, "Ma'am, I'll ask a customer in the waiting room to come in and have a look at the tattoos. If he can identify Elvis, you pay me. Otherwise, you owe me nothing." The woman agrees. A customer is called in and the woman, dropping her pants and spreading her legs, says "Do you recognize these famous musicians?" The guy looks, thinks for a minute, then says "I don't know about the twins, but the one in the middle with the beard and bad breath is definitely Willie Nelson."