Well, this is about as good a companion piece and just about as wonderful as you can imagine. I don't know what year it's from, but it's for a benefit for theater in Los Angeles, the group L.A. STAGE. This is Ruby Keeler's granddaughter, Sarah Lowe, dancing "with" her grandmother from 42nd Street. And if it doesn't make you smile with joy, than you're not trying hard enough.
It's a shame that the video doesn't continue through to the applause, because you can sense the audience building, but still...it's the dance that counts.