Did you know that Rhymefest is releasing a sophomore album called El Che? If you thought that Kid Sister’s album was long awaited then you haven’t been paying attention to Rhymefest. El Che will finally be released on May 18th, but to hold you over a little longer he is releasing a new mixtape on April 1st. The mixtape will be called Dangerous: 5-18. The first track to leak from the mixtape just happens to feature John Mayer. What, you thought this was a Wale track? Here is what Fest has to say about that. "This song ("Letter") was recorded for the El Che album while I was still on Allido Records with live vocals from John Mayer. If the fans really dig the record, I will release a follow-up statement addressing the Wale situation (how he came about recording his version of "Letter") in the immediate future."