Oprah Winfrey with Usher at his home in Atlanta

*Sunday’s episode of “Oprah’s Next Chapter” will feature an interview with Grammy Award-winning R&B artist Usher Raymond IV, who speaks publicly for the first time — and according to Usher the last time — regarding the custody battle over his two boys and what caused his break down in court.

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According to OWN, Usher will also address infidelity rumors and what really happened the night he walked off stage in Berlin and felt he may never perform again.

Later, Winfrey speaks with Usher’s mother Jonetta Patton, who has remained silent throughout the custody battle, as Patton answers why she chose not to attend her son’s wedding and the reason behind their reported rift.

Winfrey’s exclusive interview with Usher will air on “Oprah’s Next Chapter” this Sunday, September 16 at 9:00 p.m. ET/PT on OWN: Oprah Winfrey Network.

View a promo below.