User blog comment:Drakan95/Ant-Man vs Atom Ant. Epic Rap Battles: Cartoons vs History. Season 2/@comment-25317959-20160120015801/@comment-25519319-20160121082222

Even if some words do end with an -s sound, it's still a rhyme. Take for example, the following lines of Shaka Zulu:

Right, I've heard of your play. Tell me, how does it end?

Oh yes! You get stabbed many times by your friends!

Even if there's a word at plural, the rhyming it's still there. :P