But behind the smiles and show-stopping costumes the mother of three is said to be struggling to come to terms with the end of her marriage amid reports she's agreed to her husband Peter Andre's request for a quickie divorce with great reluctance.
Speaking behind the scenes at the event, Katie, who was looking even slimmer than usual, reportedly admitted to being drained. "I haven't felt this low in ages," she confessed.
"It's sad, but she's given up the fight," a source close to the media personality told a British newspaper. "She now accepts she's never getting Peter back, and is ready to move on with her life".
Rather than waiting six months the estranged pair, who've each been consulting lawyers, could be granted a divorce within a month. Pete waived his rights to his wife's fortune by signing a pre-nup before their marriage in April 2005.
The pop favourite has indicated his main concern is access to their children, Harvey, Katie's seven-year-old son from a previous relationship, Junior, who's nearly four, and Princess Tiaamii, 23 months.