Since both have the rights they can both legally display the lyrics. If Google did scrape the lyrics from the site, it can't be a copyright violation. Even if Genius crowdsourced or transcribed the lyrics themselves, it is a derivative work of the original and tied to the original copyright. With maps, you can't copyright facts and so you can copy a 100% accurate map. Mapmakers might throw in little mistakes to prove that their work was copied and sue for infringement on that basis. Lyrics are not facts - they are already copyrighted.