Yall So Stupid was an alternative hip hop group based in Atlanta, Georgia. It was formed by H2O, Unkle Buk, Sha Boogie, Spearhead X and Logic in 1991. After performing extensively in Atlanta's underground circuit, the group was signed by Dallas Austin & L.A. Reid to Rowdy Records in 1992. Their debut album, ''Van Full of Pakistans, was released on May 25, 1993. The group was released from their label that same year.

In 1995, H2O formed the group Massinfluence with Audessey, Cognito and Spearhead X. They released an album in 1996 entitled The Underground Science'. They also recorded a second album, called Intellect Street Music, which was not released; the group broke up in 2002. In 2009, he formed the duo H&P with DJ Pocket of Atlanta. They recorded an album entitled Stay In Your Lane which is set to be released in 2010.