Gaby Roslin is to co-present the Breakfast Show on BBC London 94.9FM alongside Paul Ross, the duo will take to the air on 11 January.
Roslin has helped anchor the Breakfast Show before and has also deputized on the network in place of Lesley Joseph and Vanessa Feltz.
Gaby said: "I've always said I would never do a breakfast show again, but the lure was just too strong and I couldn't resist the opportunity of working on my favourite station."
David Robey, Editor of BBC London 94.9FM, added: "I'm delighted to confirm that Gaby will be joining the BBC London 94.9FM Breakfast Show early in the New Year.”