He may not be the hardest-working man in show business, but John Valby, a.k.a. "Dr. Dirty," puts in a day's work. He plays a one-hour set, takes a 20-minute break during which he works the merchandise ...

John Valby, also known as Dr. Dirty, is song parody’s id. Armed only with a keyboard and a gruff barroom croak, Valby riles throngs of inebriated college students, weaving together gross-out humor, ...

A classically trained pianist who sings dirty ditties that no one can resist laughing at. It’s an interesting blend that has audiences everywhere coming back for more! Few people can resist laughing ...