CHRISTMAS time means party time and tonight is the night to launch into some serious merry-making. Fortunately for all you diehards left in town, there's plenty going on to warm you up for the big one on New Year's eve. Here's a rundown of what's happening tonight, on Christmas night and also the live highlights of next week. Hong Kong's one and only drag queen, Siren, is promising a glittering night of cabaret with ''her'' dance show tonight at Judgement AD (Bank of America Tower). ''It's going to be rather camp and incredibly silly,'' promised Siren. While Siren and her chorus line will be on stage from about 11.30pm, there's a lot of other things happening at Judgement AD. Entertainment-wise there's Max Tampo, a band from Los Angeles, from about 10.30pm, followed by Siren and then CD Voice, two lads from San Francisco, playing Canto, Mandarin and English pop tunes. There are also lucky draw prizes. Entrance for non-diners is $300 a head, including a glass of champagne and another drink. Dinner, show and four drinks adds up to $880, plus ten per cent service, but gets you a table upstairs or downstairs. The boys from Blue Wail will be belting out classic covers that always get a bar moving at Portico (Citibank Plaza, Central) from around 10.30pm. There's no cover charge. Portico is also offering a special five course menu for $580, plus ten per cent service, which includes a glass of champagne. The Jazz Club (Lan Kwai Fong) is also certain to be heaving tonight - the African reggae band Nogabe are playing, the cover charge is $150. Hooray Howard and the Henries are doing their bit for Christmas - appearing as Howard and Co, there'll be performing carols at The Wanch (Jaffe Road, Wan Chai). As a special treat, a bagpiper will be strolling in at around midnight. Kicks off around 10pm. There's not a real lot happening on Christmas night, but there is one event worth heading out of doors for if you're in the mood for some serious partying. There's a Utopia Christmas party on at Judgement AD. This one kicks off at 1.30 in the morning and goes until 7am. There's a $150 cover charge, which also gets you a drink, and a team of local DJs are promising to spin old and new favourites to get the party jumping. If you fancy something a little more laid back and refined then may we suggest the Lobby Lounge of the Conrad Hotel between 8pm and 1am for some jazz and blues tunes from the Brohams. The Brohams, who hail from Seattle, are fairly new in town and are already proving a popular attraction. There's no cover charge. Heavy rock band the Rock Gang will be celebrating Christmas in true headbanging style at Amoeba. The Brohams play all next week in the Conrad Hotel's Lobby Lounge between 7.30pm and 11.30pm, while Sammy is playing at The Wanch. Monday night sees the start of a four-night guest spot from British trumpet player Guy Barker. Returning to the territory after a recent visit with Georgie Fame, Guy is back at the Jazz Club. Barker met his new wife there four years ago and their return is also a bit of a honeymoon. Cover charge $200. The other big event of the week happens on Wednesday at Hot Shot when Radio Free Hong Kong gets unplugged - yes, the purveyors of rock are going acoustic. Appearing will be Stand Mute, a three-piece grunge band, and popsters Black and Blue. The proceedings kick off at 8.30 pm, there is a $30 cover charge and happy hour between 11 pm and 1 am. Also playing tonight are the Bambinos at The Wanch from 9pm.