Kanye West could be one step closer to launching his own music streaming service.The 43-year-old rapper and fashion mogul, who recently announced his plans to run for president in 2020, took to Twitter on Friday night (July 10) to share the "roster proposal" for Yeezy Sound, a company he filed trademark papers for in 2017."YEEZY SOUND ROSTER PROPOSAL," West captioned a handwritten note featuring a list of artists, including hip-hop duo Abstract Mindstate, G.O.O.D.