Google today announced an update to YouTube Music on iOS and Android that will make it easier to seamlessly switch between merely listening to the audio and watching a song’s music video. To do so, you only have to tap a button at the top of the screen. This should work for almost every song that has a video since Google has time-matched over 5 million official music videos to their audio tracks.
You have to be a paying YouTube Premium or YouTube Music Premium subscriber to get access to this new feature, though. If you’re using a free account, you’re out of luck.