https://www.cnet.com/news/iphone-x-piano-guys-music-video-youtube-flicker/

The song is an instrumental cover of pop star Niall Horan's "Flicker." The stirring composition melds beautifully with the dramatic smartphone film work. 

The video debuted on Thursday and The Piano Guys say this is the first music video they're aware of that was shot exclusively using an iPhone X.