This app was mentioned in 2 comments, with an average of 1.00 upvote
Or, you could just use AlSong
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https://play.google.com/store/apps/details?id=com.estsoft.alsong&hl=en
i'm afraid i can't recommend anything... there's this korean app that displays lyrics (in korean) and even offers translations of english ones under the floating window, i've never come across to anything like it on western apps. unfortunately i can't understand a thing about it lol
https://play.google.com/store/apps/details?id=com.estsoft.alsong
that's the app, in case you can discover a database of sorts!