HO99O9 (pronounced Horror) is an American experimental thrashcore rap, crossover punk band from New Jersey, formed in 2012 by theOGM (Jean) & Yetti999 (Eaddy). The band relocated to Los Angeles in 2014 and consists of vocalists theOGM, Eaddy and more often than not a revolving drummer. Their style combines dark experimental hip hop with the aggression of hardcore punk.

HO99O9 first performed in November 2012 and have since attracted a strong cult following thanks to the intense and infectious energy they deliver during their live shows. They have played with bands including the Dillinger Eacape Plan, Japanther, Cerebral Ballzy, NinjaSonik & many more. They have also performed at the Afropunk Festival in 2014, the SXSW Music Festival in 2015 and Primavera Sound Festival in 2016.

Ho99o9 has released two EPs, 'Mutant Freax' and 'Horrors of 1999'. Their first full-length album 'United States Of Horror' was released on the 5 May 2017. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.