Mary Eaton
I never heard of this pretty lady until I first watched this in 1984 & when she sings her song "No Foolin", then I thought wow! Sometimes though I get more sad watching certain films and this was one of them when I would later read that Mary later sank into alcoholism & died at a young 47. Two of her siblings lived well past 90.
I now hear that the film has been restored & one doesn't have to rely on poor public domain copies to view this.
One of the better parts is Helen Morgan sitting on the grand piano singing her song "What Would I Do For That Man". Awesome catching the tail end of the Roaring 20s as the film was likely shot a few months before the Wall Street crash.