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28 February 2012, 08:22
Just 150 days to go now until the Olympics and to celebrate, giant Olympic rings are being paraded down the Thames.
They'll pass some of London's most famous landmarks, with Tower Bridge opening to let them through.
It comes as we expect confirmation later that the Games will come in under budget.
MPs will confirm the 500 million pound contingency fund for the Olympic Games remains unspent.