Hi Rachel,
Here is an article from the New York Daily News about Whitney's performance at the Cipriani Hotel. It's much better than the stupid one at the Rolling Stone web site.

Whitney's Caught Off-Guard

Whitney Houston got a little shock when she looked out into a concert crowd Wednesday night. Smiling back at her was her former co-star Kevin Costner.

The actor is said to have talked about surprising Houston by jumping onstage during her show at Wall Street's Cipriani Hotel. But the singer's handlers decided that might be too much of a surprise. (We wouldn't want her bodyguards beating up her "Bodyguard," would we?)

Houston, shimmering in her new auburn hair and a gold sequin gown, dedicated her "Bodyguard" anthem "I Will Always Love You" to Costner, "mommy" Cissy Houston and hubby Bobby Brown (who looked clean and sober, and thoroughly beguiled by his wife).

Other songs went out to gathered friends like Mary J. Blige, Kenneth (Babyface) Edmonds, gospel great BeBe Winans and songwriters Darryl Simmons and Denise Rich.

Arista chief Clive Davis was also there. Houston recalled how Davis told her one day, "You have to come back to work."

"When?" replied Houston.

"Yesterday," said Davis.