Bobbi Kristina's Family, Clinging To Hope, Sings 'Greatest Love of All'

INSIDE EDITION has the latest on the growing family tensions inside the hospital as Whitney Houston and Bobby Brown's daughter, Bobbi Kristina, fights for her life.

The first sight of Bobbi Kristina’s grieving father, singer Bobby Brown, has surfaced. Photographers found Bobby Brown with his wife and daughter as they arrived at the hospital.

Bobbi Kristina’s hospital room is a scene of heartbreak. Her father, Bobby Brown, is stroking her hair, calling her “baby girl” and singing her mom Whitney Houston's biggest hits, especially “The Greatest Love of All."

Zoe Ruderman, features director of People magazine, told INSIDE EDITION, "It is an incredibly heartbreaking situation for Bobby Brown. He is really distraught over this. He is by her bedside, he is singing songs to her, he is touching her hair, her face, he is calling her 'Baby girl.' It is just really, really sad for him."

Bobbi Kristina was transferred to the state of the art neurological unit at Emory Hospital. It's Atlanta’s most highly regarded medical facility.

Reporter Daniel Wilkerson from Atlanta station WGCL told INSIDE EDITION, “They are really going to be looking at her in the next couple of days as she is brought down from sedation to see how much brain activity she has. They are not losing hope at this point. They want to make sure they have exhausted all of the possibilities and thus that is probably the reason they have moved her to this hospital."

INSIDE EDITION is also hearing about growing tension inside the hospital.

Bobby Brown's attorney suggests the family has a lot of questions about Bobbi Kristina's boyfriend, Nick Gordon. In a statement, Bobby Brown's attorney said, "We are currently investigating the events that led to the hospitalization of Bobbi Kristina. To correct earlier reports, Bobbi Kristina is not and has never been married to Nick Gordon."

Bobbi Kristina proudly referred to Gordon as "my incredible husband' and “my hubby” on social media. She even posted photo of their wedding rings!

Ruderman said, "She has always been prolific on social media about loving her husband referring to him as her husband. They shared photos of their wedding bands and of course she wore her mother's diamond as what everyone thought was her engagement ring. It turns out they are not married."

In a police report filed last March, Bobbi Kristina’s aunt, Pat Houston, claimed, "Mr. Gordon has turned Krissy against the family," and made "threatening statements" to Houston family members.

Pat Houston even obtained a restraining order, claiming Nick Gordon "posted photos of guns with the intention of making her fearful for her personal safety."

INSIDE EDITION found several images on Instagram of Gordon holding weapons.

Now, that there are questions about whether the couple was ever married, Bobby Brown will be making all the decisions regarding his stricken daughter's future.

Wilkerson told INSIDE EDITION, "They have not come out and said that this is a last ditch effort, but I think you can very well assume that it is. The family is telling me, at this point, that they feel that really prayers will be the only thing that will work and for people around the world to pray."