The YouTube app on PS4 has received a big update.
The standard YouTube app on PS4 has been updated to allow PlayStation VR owners to watch 360° videos on their headset through the console. The recent update opens up the many surround videos available to headset users.
You don’t need to do anything specific to get going, just put on your headset and launch the app. Browsing the 360° videos category will let you play them in the headset.