I'm not talking about, say, EDM (which, I admit, generally sounds to me like a Transformer got hold of a bad burrito).
But, the mere existence of lyrics isn't enough. I'm talking about songs constructed so you can sing along.
For rap music, there's a problem - speed. You can't get a crowd of people cogently signing along to rap, any more than you can get them signing along to Gilbert and Sullivan's "I am the Very Model of a Modern Major General". The lyric of the tune is sung by one person, because even the slightest mismatch in cadences turns it into an incomprehensible mess.