Crucial Conflict is a Chicago hip hop group best known for its 1996 single "Hay" (from the album "The Final Tic") and "Scummy" (from the album "Good Side, Bad Side"). The members of Crucial Conflict are Coldhard, Wildstyle, Kilo, and Never. They frequently collaborate with fellow Chicago rappers Do or Die and Twista. With fast-paced raps, they were being compared with Bone Thugs-N-Harmony, whom they later ended up feuding. When the hit "Hay" was released, it improved the sales of the band's album "The Final Tic".