The tireless Rich The Kid has just dropped off Keep Flexin, his fourth tape of the year -- though his first solo project since April's Trap Talk. There are several features on the tape, and two of the big ones -- Quavo and Desiigner -- guest on the same track, "Goin," which has immediate hit potential. Over a freely cascading synthy production from DJ Durel, Desiigner opens the record with the hook, as he exercises smooth blasts of spontaneous raps and unintelligible melodies, while his maniacal cackles can be heard underneath. Rich The Kid and Quavo both deliver verses that balance high flexing with heartfelt inspiration. Though he isn't listed as a feature, Desiigner's ad-libs and assault-style tongue rolling can be heard on Meek Mill's DC4 track "The Difference," which officially features Quavo. The two melodically minded rappers seem to be collaborating as a result of their mutual affiliation with GOOD Music.