I've long been a fan of the costume designs done for the Ballet Russes, in the teens and twenties of the last century particularly.
Now the V&A (Victoria and Albert Museum) are holding an exhibition on Diaghilev and his Ballet Russes.
I love that Diaghilev collaberated with some of the greatest artists and designers of the time, including Chanel, Matisse, Picasso, etc.
My favourite have to be the designs of Leon Bakst, though - they're just so full of colour and life, like these ones. (And check out those chopines on the red design!)
The exhibitions full title is 'Diaghilev and the Golden Age of the Ballets Russes, 1909-1929', and it runs until 9th January 2011. As it's a special exhibition tickets cost around £10 for an adult, although museum entry is free.