Kool John

The HBK Gang (abbreviation for the Heartbreak Gang) is an American hip-hop collective based in San Francisco Bay Area. Founded by Iamsu!, Chief, Skipper, and P-Lo in 2008, members also include singer Kehlani and rapper-producers Sage the Gemini, IsThatCJ, Rossi, Dave Steezy, Jay Ant, and Kool John. After contributing to various mixtapes, including Iamsu's Kilt II, in August 2013, the group released their debut mixtape, Gang Forever. HBK Gang Records is an associated independent record label.