Cause: 18 years is a long time to be in a partnership with anyone. Maybe that's why it seems like time took its toll on Bone Thugs-N-Harmony in 2011. After some internal problems, Krayzie Bone decided it was time for him to leave the group and embark on a solo career. His decision resulted in the rest of the group basically tearing into him and proclaiming that they would go on together sans Krayzie.
Currently: After fixing whatever problems they had, Bone got back together. They joined the 2012 Rock The Bells tour, teased an album that has yet to come out, and released some new music. Most recently, they were featured on A$AP Ferg's Trap Lord.