The virtuoso Russian ballerina Natalia Osipova will guest with the Royal Ballet this autumn with Carlos Acosta in the opening run of Swan Lake. Osipova, whose partnership with the phenomenal Ivan Vasiliev has become the most talked-about in world ballet, will dance the double role of Odette/Odile (the White Swan and Black Swan) on 10, 13 and 25 October with the RB's Cuban star Carlos Acosta, in place of Tamara Rojo, the ballerina who becomes English National Ballet's artistic director from September.

What lies ahead for dance as arts spending cuts bite? Can it survive the withdrawal of public funds that support dancers' training, choreographers' creativity, employment costs and health care? Is protest necessary? A panel of the British dance world's leading figures was brought together by theartsdesk for a major debate last Friday in central London, as dance faced its own Question Time.

The star ballerina Sylvie Guillem was rehearsing in London when she heard about the cataclysmic Japanese earthquake last spring, and the devastating tsunami in its aftermath. It was an apocalyptic blow that she felt personally. Since her first visit there as a teenager, the internationally renowned dancer has been drawn back to Japan year after year, winning legions of friends and supporters, the culture’s aesthetic clarity and spareness influencing her taste, and complementing her own evolution from classical ballerina assoluta into contemporary dancer stupenda.

Great Mariinsky ballerinas are a breed apart, even from Bolshoi women. They take the stage with a consciousness of entitlement that’s thrilling to watch, and when this almost sacred sense of mystique and grace instilled in St Petersburg comes with vivid expressive distinction too, then there really is nothing like it. Even if three American 20th-century ballets might not be thought the likeliest territory to make such discoveries, what a night for ballerinas last night was. Viktoria Terëshkina and Alina Somova are on their way to joining the peerless Uliana Lopatkina at the high table.

Les Grands Ballets Classiques de Stoke Poges are a company waiting to happen for most of us, but for Les Ballets Trockadero de Monte Carlo a bitter rivalry must be endured - one of their ballerinas didn’t show up last night in High Wycombe, due to winging on a last-minute errand of mercy to the Stoke Poges mob. Fortunately Ida Nevaseyneva was available to totter in with her eternally moulting Dying Swan - and all suddenly became right with the world. The Trocks are an errand of mercy, to anyone who loves old ballet, anyone who loves smart comedy.

The Bolshoi Ballet’s prima ballerina Svetlana Zakharova gave birth in Moscow yesterday to a baby girl, the child of the celebrated violinist Vadim Repin. Weighing 3.1 kilograms, the baby is named Anna.

Shortly before he died Merce Cunningham came to see the Trocks’ new parody of his work - he loved the dancing but hated the music. Pace the great man, for most of us watching it Wednesday night the entire thing is a miracle of comedic perception, from the three lanky fellows in strange unitards and weird hair, po-facedly hopping about the stage, to the two mad musicians in black at the side, bursting paper bags, gargling, shaving the microphone, and mooing gently.

In the first of a short summer series in which artists and performers tell theartsdesk about what they're reading, ballerina Tamara Rojo talks about the books she's taken with her on holiday, and what she's enjoyed reading. We run short extracts from two of them.

What's the preferred scoff of Moulin Rouge can-can dancers? We found out, rather accidentally, last night, if you watched the final of Celebrity Masterchef. And if the world's dancers don't beat down the doors of Paris to get in, I'll eat my chat.

After all the encomia for Natalia Osipova it’s time for a paean to another Bolshoi ballerina, whose witty underplaying and conquest of style makes her the lady I’d choose to see shipwrecked in full tutu, diamonds and pink satin pointe shoes on any desert island I fetched up on. Maria Alexandrova starred in two 19th-century restorations of palatial opulence - the pirate party Le Corsaire and the princess party Paquita.