Kanye West has split with longtime manager Izvor “Izzy” Zivkovic, according to Billboard.

West and the low-profile Zivkovic have been affiliated since at least 2010, though their relationship is believed to extend beyond the turn of the decade. It’s currently unclear what led to the pair’s split.

Billboard reports that Scooter Braun — who began working with West in 2016 — will stay on as part of the rapper’s management team. It’s expected Braun — who also handles Justin Bieber and Ariana Grande — will take on more responsibility now that Zivkovic is no longer involved.

Nights. #happybdayellen #kanyeposegameisthegreatest

A post shared by Scooter Braun (@scooterbraun) on

West — who is repped by Creative Artists Agency — is believed to be working on new music, with reports suggesting the Chicago native has been in Wyoming recently collaborating with the likes of Drake, Nas, Travis Scott and Kid Cudi, among others. As of press time, few details are known about West’s upcoming music.

Yeezy attended the March For Our Lives rally in Washington D.C. on Saturday (March 24), alongside his wife, Kim Kardashian-West, as well as Common and Vic Mensa.