Replacing a TV legend is always a tall order, but does the Mayor of London have what it takes?
In an interview for Channel 5 News, Sir Bruce Forsyth, when asked who was going to fill his shoes on Strictly Come Dancing said he'd like to see Boris Johnson have a go.
Sir Bruce said he suspected London's Mayor had a good set of dancing shoes. And he offered to take over the job of running the capital as Mr Johnson's replacement.
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Paramedics were on standby outside the police cordon as armed officers stood by the property.
A team of researchers has taken samples from the ten busiest London Underground lines to work out which are the dirtiest.
The action comes on top of an emergency timetable which has seen hundreds of trains a day being axed.