"Welcome to Thailand/Welcome to the land of fun" sings an Asian beauty, Toor, to open this musical revue. But maybe she should have said "welcome to the land of sexual confusion, self-questioning and sheer delight." Because "she", you see, is a "he". Or isn't, as the case may be. And from the moment Toor oozes her way across the stage of the Tivoli to the ruminations about sex, gender-bending, hormone treatments, implants, snips and the pure, primal, personal desire that must surface during this show, you're bound to come away from The Ladyboys of Bangkok wondering is there really such a thing as "straight" when it comes to sexuality. Not in Bangkok, it seems. Specifically in the city's famed Mamba Cabaret Club, birthplace of this bewitching troupe of transvestites and transsexuals who mix mime, dance, comedy, costume changes and music to staggering effect. Sure, the show pays more attention to thigh-culture than Thai culture, but it proves that pop rules the world.

Songs like I Am What I Am are reconstructed as if they were always sung in this setting, as were Sex Bomb, I Will Survive and, most perfectly of all, One Man Woman, mimed by Dee, a creature vertically dee-vided, one half man, the other half woman. Best of all, both halves start jokingly jostling with each other, sexually, before the song ends. Jung would have loved it. Sinatra, on the other hand, would probably hate the genuinely-moving version of My Way, which highlights the pain and pathos behind the artifice of transvestism for some - as a "she" becomes a "he" before our eyes, a real highlight of the show. It was followed by a deliciously realised Abba tribute, which finally saved the last half of the show from becoming too repetitive. As did Joon, whose hyped-up, humorous versions of ditties like Fire Down Below dominated Ladyboys from start to finish.

Runs until October 8th (except Monday), Tuesday-Thursday and Sunday at 8 p.m., Friday and Saturday at 6.30 p.m. and 8.30 p.m. To book phone 01-4544472