Imagine a dance routine in a 2082 version of Dancing with the Stars. Think it would blow you away compared to today? Now, check out this from the same 70-year time span…going back in time. Think it could possibly still be one of the greatest dance routines ever? You decide. Ladies and gentlemen, the Nicholas Brothers, from the 1942 movie “Orchestra Wives,” with a typical 1940s long setup, this one by the Glenn Miller Band. If you want to go directly to the dance routine, fast-forward to 4:20.