Musixmatch has a free, public database where lyrics are displayed. To contribute to the database, users can sign up and contribute lyrics, synchronizations, translations, and structuring to get points and move up levels. Musixmatch's points have no redeemable value, but are instead a marker of a particular user's contributions.
The coolest thing about the Japanese Super Mario Bros Movie is that (to the best my knowledge) Mamoru Miyano has never appeared in public wearing cloths that signal support for fascist militias.