Boris Johnson has been included in David Cameron's Cabinet as a number of women MPs have been given top roles in the final line-up.
Mr Cameron announced Mr Johnson, who was elected MP for Uxbridge last week, would be attending Cabinet but he does not have a ministerial role so he can devote his attention to his final year as Mayor of London.
Former banker and previous Culture Secretary Sajid Javid has been given the role of Business Secretary, a role vacated by Liberal Democrat Vince Cable, who held the post for five years and lost his Twickenham seat.
Mr Javid is replaced as Culture Secretary by John Whittingdale, who will deal with the renewal of the BBC charter, which covers how the organisation is funded.
In October, Mr Whittingdale said the licence fee was "worse than the Poll Tax" and said it was "unsustainable over 20 to 50 years".
Following the news of his appointment the BBC Press Office retweeted a post detailing his voting record on gay marriage and hunting. He told Sky News he had not seen the post and that he was "looking forward to working with the BBC".
A number of women MPs were rewarded with greater roles as the Prime Minister moved towards his target that would see a third of the cabinet made up of women.
The first was Amber Rudd, who has been made Secretary for Energy and Climate Change - a role previously held by Liberal Democrat Ed Davey, who lost his seat last week.
Priti Patel, has been given the role Employment Minister, the role that had been held by the Conservative MP Esther McVey, who lost her seat last week. Like Ms McVey, Ms Patel will attend Cabinet. Another woman to attend Cabinet will be Anna Soubry, who has been made Small Business Minister.
Mr Johnson's spokesman said: "The mayor has accepted an invitation from the Prime Minister to attend political cabinet.
"This is not a ministerial appointment. He won't be attending full Cabinet and won't be running any department.
Mr Cameron tweeted this photo earlier | Image via @David_Cameron on Twitter
"The mayor has always been clear, he has to fulfil his mandate running London first, and that's exactly what he will be doing until his term ends in May 2016."
Eric Pickles has been pushed from his role as Communities Secretary and has been made anti-corruption tsar. He is replaced by Greg Clark.
Liz Truss will remain as Environment Secretary, Patrick McLoughlin will continue in his role as Transport Secretary and Justine Greening as International Development Secretary. Theresa Villiers stays as Northern Ireland Secretary.
Mr Cameron also announced Robert Halfon would become Deputy Chairman of the Conservative Party - Grant Shapps is party chairman.
The Prime Minister also addressed Conservative backbenchers at a meeting of the powerful 1922 Committee. He was greeted with applause, joking with journalists outside that he was going to sue YouGov for the polling which showed it was neck and neck.
Mr Cameron said he had three priorities: to make sure the Conservatives are the party of the "working people", to implement health and welfare reforms and to bring the UK together - a response to the rise of the SNP.
Despite his win, Mr Cameron will have to govern with a wafer-thin majority so will need to keep his backbenchers in line. As he left the meeting after 42 minutes he said: "I think that went OK." Mr Johnson described the meeting as "orgiastic".
Mr Cameron announced on Sunday that Iain Duncan Smith will remain in charge of the Government's welfare reforms as Work and Pensions Secretary.
He is one of a number of senior Conservative MPs who have kept their jobs in the Cabinet, including Chancellor George Osborne, Home Secretary Theresa May, Foreign Secretary Philip Hammond, Education Secretary Nicky Morgan and Defence Secretary Michael Fallon.
Michael Gove was also restored to the top of government on Saturday as Justice Secretary and Lord Chancellor.
