A midwinter night’s dream at the Barbican. Those who like their pop music performed by chaps with jeans, preferably gazing at their shoes, and are attached to certain ideas of authenticity would have run screaming for the exit. The Irrepressibles were pop as icy spectacle, as dizzying melodrama, while Gabby Young & Other Animals were raiding the musical dressing-up box and emerging with bits of French chanson, German cabaret and slinky tangos, and having a ball doing it.

Robert Lepage is not just one of the most fêted and sought-after theatre directors in the world; he is also one of the most prolific. His international breakthrough came with The Dragon Trilogy in 1985, and since then the French-Canadian’s work has been seen across the globe. His stunningly ambitious production of Wagner’s Ring cycle was recently performed at the Metropolitan Opera, New York, and he conceived and directed Cirque du Soleil’s latest acrobatic blockbuster, Totem, which can currently be seen at the Royal Albert Hall.

Believe it or not, some critics can't get enough of London's superabundant concert scene. I could hardly be sour about not catching Gustavo Dudamel's first Barbican concert on Thursday night, spellbound as I was by his predecessor at the Los Angeles Philharmonic, Esa-Pekka Salonen, spinning such insidiously beautiful Bartók with the Philharmonia over on the South Bank.

There had been murmurings that his star had dimmed. That Gustavo Dudamel's partnership with the Los Angeles Philharmonic (greeted with such fanfare in 2009) had yet to set the West Coast on fire. Had this Icarus flown too high? Would their debut visit to the Barbican last night resemble Breughel's fall, Latino legs flailing in an orchestral sea? Not a bit of it.

At last a terrific show in this year’s mime festival - Du Goudron et des plumes (Tar and Feathers), in which you gasp at the brilliance with which the French acrobatic troupe, Compagnie MPTA/Mathurin Bolze, invent a wondrously unstable world on a swinging raft that's deliciously mad and imaginative. It’s as if echoes of a children’s game on swings had suddenly mushroomed into a sphere of its own sound and motion laws, and in the dark, bare Barbican Theatre is a perfect place to watch it. Hurry - you have just two nights left.

At last a terrific show in this year’s mime festival - Du Goudron et des plumes (Tar and Feathers), in which you gasp at the brilliance with which the French acrobatic troupe, Compagnie MPTA/Mathurin Bolze, invent a wondrously unstable world on a swinging raft that's deliciously mad and imaginative. It’s as if echoes of a children’s game on swings had suddenly mushroomed into a sphere of its own sound and motion laws, and in the dark, bare Barbican Theatre is a perfect place to watch it. Hurry - you have just two nights left.

It’s mime time in London. The new year is always ushered in by a motley of theatrical varieties, from puppets and acrobats to illusionists and mimes - it’s certainly an up-and-down ride in the London International Mime Festival. It began this week with an up in the shape of a spooky children’s puppet show based on Edgar Allan Poe and a down in the tale of an office invaded by wildlife.

It’s mime time in London. The new year is always ushered in by a motley of theatrical varieties, from puppets and acrobats to illusionists and mimes - it’s certainly an up-and-down ride in the London International Mime Festival. It began this week with an up in the shape of a spooky children’s puppet show based on Edgar Allan Poe and a down in the tale of an office invaded by wildlife.

Valery Gergiev’s survey of the Tchaikovsky symphonies began here on a chilly January night with youthfully idealistic Winter Daydreams thrown into the sharpest relief against a disillusioned and angry Shostakovich whose own journey into the bleak mid-winter was, by the time he penned his Second Violin Concerto, very much a one-way ticket. Two revealing performances, one remarkable young violinist.

In 2011 the Barbican offers eminent theatre directors Robert LePage and Peter Brook along with the diversions of London International Mime Festival. Music includes composer focuses on Unsuk Chin, Brian Ferneyhough and Peter Eötvös, and high-profile visits by great conductors Sir Simon Rattle, Bernard Haitink, Sir Colin Davis and Barbican resident guest Valery Gergiev. Joan as Police Woman, the Waterboys, Ladysmith Black Mambazo and Marianne Faithfull are among contemporary music performers while video and media art is featured from Ryoji Ikeda and Cory Arcangel.