Details are slowly emerging about Tetsuo & Youth, Lupe Fiasco's mysterious upcoming fifth album. After dropping the Ed Sheeran-assisted single for the record, "Old School Love," a couple weeks ago, the oft-embattled rapper has revealed via his private Twitter account that he's secured another guest for the album: Big K.R.I.T.

Though Lupe has yet to reveal the tracklist or many other details about the album, in addition to the Sheeran and K.R.I.T. collaborations, the album will likely feature the track "Crack" with Chris Brown. Lupe revealed that K.R.I.T. would be working on the album in the Tweet below.

Lupe Fiasco Tweet

In addition to collaborating with Lupe, K.R.I.T. is hard at work on his follow-up to 2012's Live From The Underground. In a recent interview with XXL, K.R.I.T. discussed the musical direction of his new album, which will be called Cadillactica.

"I’m brainstorming hardcore," he said in the interview. "I’m working with other producers as well. You know DJ Dahi, Jim Johnson, Rico Love, DJ Toomp, Terius Martin; there’s a lot of other people, too, that I’m gonna get in the studio with. But those are the people for starters that I’ve been working with, that I’m really excited about the content I’ve been able to create."