GEO53805_1*Oprah Winfrey will sit down with Cissy Houston in her New Jersey home for her first in-depth interview since the death of her daughter Whitney Houston last February.

Oprah talks to Cissy about when and what she knew about Whitney’s drug use, how she really felt about her daughter’s marriage to R&B singer Bobby Brown and the true nature of Whitney’s relationship with her high school best friend, Robyn Crawford – a woman long rumored to be the late singer’s lover.

GEO54428_1Also, Oprah talks to Whitney’s older brother, Michael Houston (included in photo above). In an emotional discussion, Michael reveals the origin of Whitney’s drug use.

Oprah’s interview with Cissy Houston premieres Monday, Jan. 28, at 10/9c. Get a first look below.