Bobby Brown Breaks Down in Tears ... 'I Lost My Baby'

6/3/2016 8:36 AM PDT

Bobby Brown lost it while describing the moment he decided to turn off Bobbi Kristina's life support.

Brown sat down with ABC's Robin Roberts to talk not only about his daughter's death, but also his ex-wife Whitney Houston.

The singer covers a lot of ground -- including the first time Bobby saw Whitney do drugs, and how addiction affected their marriage and his finances. The interview airs next week on "20/20."