A whiff of excrement hangs around DBC Pierre’s Booker Prize-winning Vernon God Little. It’s a novel that likes to get right up into the crevices of society and then inhale deeply. Written in an anarchic, freewheeling American patois, it’s the inner voice of Vernon himself (and Pierre’s brutal way with a simile) that plays shock and awe with the reader, delighting many and appalling more. The loss of narrative voice would seem enough to deter any would-be theatrical adaptor, but in 2007 Tanya Ronder and the Young Vic took up the challenge. The result (newly revised) now makes a return – shotgun in one hand, the other down its trousers.

One of the best things about a Cindy Sherman show is you never know what you’re going to get. And in this exhibition, of a new series of "Untitled" images, what you get is very surprising indeed. Sherman's photographs are not about her, but they are always her. Sherman has always used herself – or "herself", a manipulated, redacted representation – as the canvas on which she works. This time, however, the canvas itself has changed.

2010 saw some major shifts stirring up the UK club music ecosystem and unleashing some fascinating hybrids and variants of existing sounds out into the wild. As the hefty bass of dubstep muscled its way firmly into the heart of the mainstream, everything else was forced to rearrange its position, with some surprising results.

Oh dearie, dearie me. Modern Perspectives sounded like it had such promise. Running alongside the big Canaletto show in the Sainsbury wing of the National Gallery, two finished works and one work in progress by Ben Johnson are on show in Room One. The idea is to look at a contemporary artist who, like Canaletto and his coevals, produces panoramic views of cities. Johnson, despite his quasi-illustrative, photo-realist style, says he produces not "topographical representations of a real place, but perhaps a manifestation of a dream... timeless and transcendent". Wouldn’t it be pretty to think so?

With its finger-on-the-pulse tagline, “Welcome to the anti-social network” and respectable credentials, Chatroom is an intriguing prospect. It’s based on an acclaimed stage play, directed by the visionary Hideo Nakata (Ringu, Dark Water), with a script by Enda Walsh (Hunger) and populated by a cast of bright young things including Aaron Johnson and Imogen Poots. However, this cyber-thriller offers precious few thrills and is hampered cringingly by an absolute lack of authenticity. It is, as its title and tagline suggest, an exploration of the chatroom phenomenon, focusing on five teenagers as they forge friendships in cyberspace; yet it is so hopelessly out of touch with the generation it purports to portray that, although the overarching premise rings (fairly) true, it is for the most part excruciatingly inaccurate.

An awful lot of bad singing goes on in the name of Christmas. If it’s not the endless piped renditions of Slade and Cliff Richard, then it’s anaemic carol singers in every railway station and foyer. Each street corner becomes a concert hall (albeit one with exceptionally poor acoustics) and every passer-by an unwitting (not to say unwilling) audience member. Music becomes a commercial mood-board, a festive ear-worm to prompt charitable giving and personal spending in equal measure. How joyous then to escape the icy pavements and ambient noise for a few hours and celebrate Christmas with the ultimate musical professionals, The King’s Singers.

It’s been a journey, an emotional rollercoaster, since 14 soap stars and sports personalities abandoned reality three months ago, donned a series of spandex and chiffon outfits and embarked upon the most important experience of their lives. They all gave it 110 per cent, took disappointment on the chin and came back fighting, and last night the three finalists battled it out for the ultimate prize – the Strictly Come Dancing 2010 glitterball trophy.

“Show a little more, show a little less. Add a little smoke – welcome to burlesque.” The coy, wittier sister of stripping, and first cousin to musical theatre, the 19th-century art of burlesque is currently enjoying a revival. With comely champions in Dita von Teese and our own gloriously named Immodesty Blaize, the art has shaken off its cruder associations and shimmied into the diamante-studded mainstream. Naughty enough for a red-cheeked thrill, wholesome enough for a BBC documentary, the paradox of burlesque is made for Hollywood and its contradictory values.

Welcome to the stinking, sprawling Bayou Mansions – the thorn in a prosperous city’s side, the “short-and-curly hair in the mouthful of sponge cake”. So cramped there isn’t even room to swing a rat (and there are plenty), so corrosive that everything here starts life as a bad smell. Forget the enchanted worlds of fable and fairy tale, this is a dystopian childhood fantasy masterminded by the select team of Kurt Weill, Kafka and the Wicked Witch from Snow White. As delicious as it is delicately malevolent, The Animals and Children Took to the Streets is a strychnine-laced gumdrop of a show, and slips down all too sweetly.