My go-to method is to start at the source and work outward. If you want the official lyrics for 'Demons', first check the artist’s own channels — their official website and YouTube channel (look for a verified checkmark or the VEVO channel if they have one). Official lyric videos or the video description often include accurate, label-approved lyrics. I also use streaming services: Apple Music and Spotify now show licensed, synced lyrics for many tracks; Apple gets direct licensing and Spotify partners with Musixmatch, so those are usually trustworthy.
If you need a backup or can’t find them there, head to licensed lyric providers like Musixmatch or LyricFind. They license text from publishers, so entries there tend to be official or publisher-approved. Be careful with fan-run sites (AZLyrics, LyricsFreak, older forums) — they’re convenient but often contain mistakes. A small habit that’s helped me is cross-checking two official places (artist site and streaming lyrics) and looking for publisher credits in the video description or album booklet if you have the digital booklet from a store like iTunes. That way I know I’m singing the correct words at karaoke night rather than making up my own version mid-chorus.