Jason L. Martin, formerly known by the stage name Problem, is an American rapper, songwriter, and record producer from Compton, California. His guest appearance alongside YG and Iamsu! on E-40's 2012 single, "Function", entered the Bubbling Under Hot 100 and received gold certification by the Recording Industry Association of America (RIAA), along with his guest appearance on Childish Gambino's single, "Sweatpants" the following year. His 2013 single, "Like Whaaat" also entered both the chart and Hot R&B/Hip-Hop Songs, and led his debut extended play (EP), Understand Me (2013).

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.