Under the proposals London would be given complete control over property taxes, including council tax, stamp duty and business rates. The London Finance Commission report also recommended giving the city the power to introduce new taxes, such as a levy on tourists, and greater freedom to borrow.
Mr Johnson said there was an "acute need for London to be able to better plan and finance the infrastructure needed to prosper and maintain a great quality of life, in the face of a decade of expansion".
More top news
The 2014 ceremony will take place at Wembley Arena on October 22, returning to the city where the awards started in 1996.
The warm weather means they seem to be everywhere. If that sends a shiver down your spine, here are some to tips to control them.