. >> whitney houston's only child, bobby kristine in brown, was rushed to the hospital this morning in los angeles. the 18-year-old has since been released. a family source said she was treated for stress and anxiety. fans and friends across the world are mourning whitney houston. one is a pew -- pow dueser who know her for more than 30 years. >> michael well don produced many of whitney houston's number one hits. we just spoke to him here at his studio in san rafael, where houston herself would come to record. >> this microphone is her microphone that we used with her because it can capture her power and not distort, and also set to capture her quiet, because she can go from hisser where to powerful. >> well don produced almost her entire second al album. the hits included, i want to dance, where do hearts go, and he produced a song, how will i know, like everyone else he says he cooperate believe the news that houston had died. >> i was in shock. and now i have had chance to digest it and feel more of the celebration of her life, and the great music that she shared with all of us. we