Late Sunday night (Jan. 31), Mills posted a photo showing Tyler reading over what looks to be Kanye's Waves crib sheet. The caption reads "Wolf gang in the building" followed by several wave emojis and "#Waves 2|11|16."

Thanks to Kanye's ever-expanding tracklist sheet, it looks like he's already tapped Chance the Rapper, Earl Sweatshirt, T Mills, Big Boy and A$AP Rocky to participate. With the album dropping on Feb. 11, though, he doesn't have much time left before he has to stop tinkering. See the post - here.

Kanye West Music, DVDs, Books and more Kanye West T-shirts and Posters More Kanye West News Share this article Related Stories • Kanye West Hijacked Shia LaBeouf's Wardrobe? • Kanye Fans Piece Together Social Media Post To Try To Solve Mystery • Chance the Rapper Talks Childish Gambino, Kanye West Collaboration • Jaden Smith No Longer Drake and Kanye West's Little Hommie • Kanye West And The Kardashians Doing Family Feud • Kanye West Instagram Return Very Short Lived • Kanye West Reaches 'Resolution' In Saint Pablo Tour Lawsuit • Kanye West Reaches 'Resolution' In Saint Pablo Tour Lawsuit • Kanye West Returns To Instagram With Special Message • Kanye West's Childhood Home To Get 'Heart Bombed' For Valentine's Day More Stories for Kanye West Kanye West Music