Who's That Girl?

I walk up and set my purchase on the checkout counter at the corner Walgreens. The girl behind the counter checks me out.

The man from behind the photo counter comes rushing up to the checkout. He recognizes me from somewhere, "Are you somebody?" 

"Yep. I'm a somebody."

"Who are you?"

"I'm me."

We go through a list of potential celebrities other people might say I sometimes kind of possibly resemble. 

"No. Nope." He tells me, "I know you are famous and just won't tell me who you are."  

Great line, Bucko, but it's not working here.