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Heart's Feel Good Weekend with Dev Griffin 12pm - 4pm
27 June 2012, 10:25 | Updated: 27 June 2012, 11:56
As the preparations continue for the Olympics, with just a month to go now, giant Olympic rings have been lowered into position at Tower Bridge.
This evening, using the bridge's new, energy-efficient lighting system, the rings will be lit up.
They'll also be lit up every night during the Games.