Cabbie playing Harmonica ends up in a sold out concert...

...The guy told Shaw to meet him at the back door of Wharton Center that night and he would put Shaw and his harmonica on stage.

Naturally, Shaw was skeptical to say the least: "I'm like, 'Yeah, right - Wharton. Who put you up to this?' "

Well, the stranger turned out to be Ben Folds, the singer-songwriter-pianist, who was, indeed, performing for a sold-out Wharton crowd that night.