BandPage, Facebook’s top app for artists trying to stream and promote their music to fans, now powers 500,000 musician Pages, Tech Crunch reports.

Just 6 months ago that number was 250,000, showing the rapid shift in focus of bands from Myspace and standalone websites to Facebook where fan retention is better. BandPage also just announced new features that allow listeners to tell friends about favorite songs through their Facebook Timeline and the Ticker feed with a single click.

Publishing to Ticker helped Spotify score massive growth and it could do the same for BandPage.

BandPage needs to do whatever it takes to keep growing its artist count since it can’t rely on big checks for custom development work from the world’s most popular acts - a model that’s helping other musician marketing services turn quick profits.