Fully formed choruses
I'll say it: Young Thug is the best hook-maker in hip-hop right now. When he's focused and restrains his spontaneous outbursts enough to insert an actual refrain, it's almost always a win. Even if you can't understand a word, you'll be singing along. Traditionalists may argue that Young Thug lacks technical skill when it comes to rapping, but his ability to come up with simple but effective melodies is undeniable.