Oprah Winfrey scored the first exclusive interview with the only child of Whitney Houston, who passed away last month at age 48. The special aired on Oprah’s OWN network tonight. Bobbi Kristina appeared briefly and spoke to Oprah about carrying on her mother’s legacy. The 19-year-old said she can still hear Whitney singing, and sometimes she forgets that Whitney is gone.

During the interview, which was conducted in the Alpharetta home of Whitney’s close friend and sister-in-law, Pat Houston, Kristina appeared tense, but happy. She smiled often and she appeared to be under the influence. Oprah hinted at that much: “What’s getting you through it?” she asked.

“My family and the Lord and her. I can hear her in my head,” said Kristina.

Kristina also said she felt Whitney’s spiritual presence in the Alpharetta townhouse that they once shared. Kristina said she has conversations with Whitney, who flips the lights on and off in the house.

“I’m like, ‘mom, what are you doing?'” Kristina said she asks Whitney.

Oprah also spent a great deal of time talking with Whitney’s sister-in-law, Pat, who threw daggers at ‘X-Factor’ contestant Stacy Francis, with whom Whitney argued over Ray J. Pat also threw Ray J under the bus by suggesting that Whitney found love in all the wrong places.

Earlier today, TMZ.com broke the news that Bobbi Kristina will seek to change her name to simply “Kristina Houston,” in an effort to sever all ties with her father, Bobby Brown.

Watch the interview with Kristina after the break.