Singer Denise Ho Wan-sze will be celebrating her 28th birthday next month, but she may be feeling too unwell to stomach much cake as her fan club is organising a party aboard a yacht. 'I don't know whose idea of a joke it was to go on a cruise for the party,' she said. 'I get sea-sick really easily. Actually, it was even worse when I was a kid. I got motion sickness and barfed all over a plane once, and for a time after that I felt nauseous every time I heard the word airplane.' Ho has already formulated a plan for her birthday: 'I'll just have to keep popping sea-sickness pills,' she said.