Organizers of today's closing ceremonies of the London Olympics vow it will be ``the best after-show party of all time.'' 

The extravaganza, which starts at 4 p-m E-T, is called the ``Symphony of British Music'' from Sir Edward Elgar to such pop acts as The Who, Annie Lennox, The Spice Girls, and George Michael.

Music director David Arnold says the star-studded event will be ``cheeky, cheesy, and thrilling.'' 

Meanwhile, Christine Sinclair will carry Canada's flag at the closing ceremony of the London Olympics.

Sinclair was chosen after leading the women's soccer team to a bronze medal. It was the first medal for Canada in a traditional team sport since 1936.

Sinclair was the popular choice after scoring an Olympic-record six goals in the women's tournament. The Burnaby, B.C., native scored three goals during an emotional 4-3 semifinal loss to the United States.

Sinclair previously carried the flag during the opening ceremonies of the Pan American Games last fall in Mexico.