Boris Johnson is to follow in the footsteps of Deputy Prime Minister Nick Clegg by hosting an LBC radio show.
The Mayor of London will take up an hour of Nick Ferrari's Tuesday show from 26 July.
Clegg has been hosting a Thursday morning slot of Nick Ferrari at Breakfast since January.
In February, Johnson recorded a message for Clegg's 30-minute show, urging him to get "government ministers out of their posh limos".
He said: "Hi Nick, it's Boris here from Islington.
"I just want to ask you when are you going to get all those government ministers out of their posh limos and onto public transport like everybody else?
"How can we possibly expect government to vote for increases in infrastructure spending, which we need in this city, and upgrading the tube, which we all need, when they sit in their chauffeur-driven limousines – paid for by the taxpayer – rather than getting down on public transport with the rest of us?"
LBC said that from next month Johnson will "choose the topics to discuss, take your calls and put his points across in his very own hour on the radio – something he has never done before".