You cannot remove vocals from a YouTube link directly inside most AI tools (unless you pay). You need the raw audio file.
This is likely the first link you will find on Google. It is a sleek, one-page web tool. You upload an MP3 of an FNF song (like "Fresh" or "Ugh"), and it gives you a slider to hear the vocals vs. the music.
Custom Modding: If you're building a mod, you need the instrumental track to layer your own custom vocals or sound effects.
Before you click the , understand the copyright rules.