Conversation so far:
when was Whitney Houston's pre-grammy party?
Whitney Houston's Pre-Grammy party was on February 11, 2012.
what happened at Whitney Houston's pre-grammy party
The Clive Davis pre-Grammy party featured many of the biggest names in music and movies, went on as scheduled – although it was quickly turned into a tribute to Houston.
was Whitney Houston at Whitney Houston's pre-grammy party?
Houston was expected to attend. Davis spoke about Houston's death at the evening's start.
What did Clive Davis say about Whitney Houston's death at the evenings start of the pre-grammy party?
Clive Davis said, ...I am personally devastated by the loss of someone who has meant so much to me for so many years. Whitney was so full of life....

Question: Who was Davis to her?
Self-contained rewrite: Who was Clive Davis to Whitney Houston?