John Payne's first feature film western was El Paso in 1949, but earlier on when he was under contract to Warner Brothers he did this Vitagraph Short about a Wild West Show that comes to a Ruritanian type kingdom in the Balkans. Young king Scotty Beckett is real enthusiastic about it, especially after Payne saves his life after he falls over from the royal balcony.
But Payne has to keep doing it because some of the king's adult counselors are planning a coup d'etat. Payne and sidekick Cliff Edwards foil the plans of plotters Stuart Holmes and Boyd Irwin.
The film is a cut down version of the Ken Maynard feature film Royal Rider and between all that life saving, several musical numbers get thrown into the bargain.
I'm betting that Jack Warner was trying out young contract player Payne to see if he might make a passable singing cowboy. In any event within two years Payne was doing A musicals at 20th Century Fox with Alice Faye, Betty Grable, and Sonja Henie.
And when he got around to westerns again, he sung not a note.