Ho99o9 (pronounced Horror) is an American hip hop/punk rock group founded by theOGM and Eaddy in 2012 in Newark, New Jersey. They relocated to Los Angeles in 2014. They attracted a cult following on account of their live performance and began collaborating with Ian Longwell who plays drums and produces for Santigold. In 2016, former Black Flag member Brandon Pertzborn became the band's drummer.
They were one of Rolling Stone's "10 New Artists You Need to Know" in 2014 and The Guardian's "New Band of the Week". They have performed at the Afropunk Festival in 2014, the SXSW Music Festival in 2015 and Primavera Sound Festival in 2016. To date, they have released multiple EPs, accompanied by grindhouse-style music videos, and two full-length albums, United States of Horror (2017) and SKIN (2022).