Rhymefest is promising to put his peers on notice publicly with the release of his revolution-inspired El Che next month.The project is Rhymefests second full-length album, and comes 4 years after his major-label debut Blue Collar on J Records.Because of the delay and label politics, the Chicago emcee was forced to rework the album and keep his name afloat with guest spots and mixtapes, most notably the Dangerous: 5-18 tape released last week.We changed the whole album. The album El Che drops May 18. Ni**as been saying, Aw, ni**a thats the Detox El Che, Rhymefest told AllHipHop.com. No, its my album and its coming out. Its not a legend. Its not a fairy tale. I had to get away from that label.Rhymefest utilizes interludes throughout the album to tell the narrative of his revolutionary activity while being tailed relentlessly by unidentified agents.On the album track Talk My S**t, he takes credit over former foe Charles Hamiltons decreased output and visibility in recent months (Wet behind the ears I make Chucky disappear ), and criticizes Wale for not heeding his advice for his debut Attention Deficit (Even before Wale bricked/I tried to pull him to the side and say those white boys wont sell your s**t!)Regarding these callouts, Rhymefest advised fans and critics to expect to hear him focused and sharp on El Che.I got names I wanna name. I got ni**as I want to air out. Im about to kill it, Rhymefest explained to AllHipHop.com.El Che will be available May 18, and features guest spots from Little Brother, Glenn Lewis, and Saigon.