WHITNEY HOUSTON'S TRIUMPHANT RETURN!

Whitney Houston made a sensational surprise return at London's Swarovski Fashion Rocks last night in one of the industry's most closely guarded secrets. There were gasps in London's Royal Albert Hall auditorium when the singer stepped on to the stage in a dazzling white Valentino dress. The 44-year-old introduced the final catwalk show of the night by Swarovski - with Patti La Belle and Sugababes performing Lady Marmalade. The superstar had secretly flown in from New York and had been in hiding in a London hotel to avoid the surprise being ruined. The star - who's been keeping a low profile since completing her last stint in rehab in 2005 - was a picture of health and a far cry from the days when she looked frail and vacant. A guest at the starstudded show said: "Everyone in the audience was amazed - even the big stars like Kate Moss, Lily Allen and Naomi Campbell started whooping with delight. It seems Whitney was not only sporting a new cleaner, leaner, healthier figure, she also appears to have abandoned her former diva-ish ways. Gone are the outrageous demands - although she didn't sing the new humble Whitney only wanted a glass of water for her voice before she made her grand entrance.