The Song "WILHELMINA" was from the 1950 movie "Wahbash Avenue" starring Betty Grable. It was Sung & Danced By Betty Grable and a mixed Chorus. Due to it's sucess in the film it was rerecorded by...
They are not related; in fact, "Kaye" is a pseudonym for both men. Danny's real name at birth was David Daniel Kaminski, and Thorsten's real last name is Kieselbach.