Star still believes Bobbi Kristina will 'wake up'

Bobby Brown continues to stand in his faith that his daughter with Whitney Houston will surely survive her long coma she's been in since February 1.

This week, the music icon was spotted outside the Atlanta DeKalb Medical Centre, a facility known for its long term acute care, where Bobbi Kristina was moved to from the Emory University Hospital in March.

The new medical center is also believed to have the best equipment to provide continuous monitoring of vital signs, something 21-year-old Bobbi desperately needs.

Doctors at her previous hospital, Emory, had tested Kristina's responsiveness last week before she was transferred to DeKalb. We're told there was no change.

Sources tell us Bobby is still leaning on the power of prayer to save his daughter who remains in coma.