He using software that separates the stems of any song. You can separate the vocals, drums, bassline, and other sounds. He just uses the software to delet the vocals so that it sounds like ans instrumental. You can clearly tell because you can still her some of the vocals in the background. The software isn't perfect but it gets close enough. Its easy. Anybody can do this with any song with the software. All it takea is a few clicks and bam you got an instrumental. I even do it sometimes 😂.
