From Wikapedia: Onyx is an American hardcore hip hop group from South Jamaica, Queens, New York City, formed in 1988 by Fredro Starr, Suavé (also known as Sonny Seeza) and the late Big DS. Sticky Fingaz joined the group in 1991.
They are best known for their 1993 platinum hit single “Slam”, which The Source magazine described as a song that introduce the art of slam dancing into hip-hop. The group has released eight studio albums, three of which have charted in the Billboard 200 albums chart Top 25. Their debut album, Bacdafucup, has been certified platinum, won Best Rap Album at the Soul Train Music Awards and was selected as one of The Source magazine’s 100 Best Rap Albums.
They are also notable for their style: loud screaming, aggression, fighting with each other, stage diving, throwing water, rapping with grimy voices, and bald head fashion.