Sudan Ameer Williams, better known by his stage name Iamsu!, is an American rapper and record producer from Richmond, California. He is the lead member of the hip hop group the HBK Gang, which was formed in 2008 and joined by fellow Bay Area artists including Kehlani and Sage the Gemini. He is best known for his guest appearances on Sage the Gemini's 2013 single "Gas Pedal" and LoveRance's 2011 single "Up!," both of which peaked within the top 50 of the Billboard Hot 100. He signed with Alternative Distribution Alliance to release his debut studio album Sincerely Yours (2014), which moderately entered the Billboard 200 and received mixed reviews.

Dominic Wynn Woods, better known by his stage name Sage the Gemini, is an American singer, rapper and record producer from Fairfield, California. He is best known for his 2013 singles "Gas Pedal" and "Red Nose," which peaked at numbers 29 and 59 on the Billboard Hot 100, respectively. Both songs preceded his debut studio album Remember Me (2014), which was released by Republic Records and saw moderate critical and commercial reception. That same year, his guest appearance alongside Lookas on Flo Rida's 2014 single, "Going Down For Real (GDFR)" peaked at number eight on the chart and received quadruple platinum certification by the Recording Industry Association of America (RIAA). He is a member of Bay Area hip hop collective the HBK Gang, and is the only member of the group alongside Kehlani and LoveRance to have signed to a major label.