The first video ever uploaded to YouTube was by one of its co-founders Jawed Karim in 2005. Since then, more than two billion videos have been uploaded to the platform from users across the world.

It's possible for musicians to gain a sustainable income from a one-hit wonder, but it's not sought after for those looking for a more impactful career.

Hit Song' shed new light on the masterpieces of famous singers for their songwriting prodigies.In the 263rd episode of KBS ...