Star to address gender transition on ABC News

Bruce Jenner has finally decided to tell all about his determination to change into a woman in a sit down with ABC's Diane Sawyer.

The 65-year-old Kardashian-Jenner patriarch's interview will air in May, according to BuzzFeed.

It's still unclear what Jenner's docu-series will be called even though some speculate it will be titled Trans-Jenner.

Bruce has been filming his docu-series for a while now and will capture his full transition. It's also expected to air on E! (owned by NBC Universal).

But according to BuzzFeed, his decision to grant an interview with ABC (rival network) has upset NBC Universal.

Kylie and Kendall Jenner are also afraid people will mock their father after he finally becomes a woman, a close source claims.