We've previously discussed the marvelous TV Western The Rifleman. Child actor Johnny Crawford played Mark McCain on the show. After it ended, he used the skills that he learned on the show and worked the rodeo circuit for two years, served in the army, and then acted in a few other roles.
But Crawford discovered the love of his life in 1920s-era Big Band and Swing music. Being an Art Deco person myself, I can understand why.
For years he has led the Johnny Crawford Orchestra in tours across the country. This is his website.
And here is a sample of his music, with Crawford singing After You're Gone: