The International Olympic Committee last month announced their intention to award the 2024 and 2028 games at once. It said the 2024 and 2028 games would go to Paris and Los Angeles but it just hadn't decided which city would get which year.
Paris and Los Angeles were the only competitors left for 2024 after rival cities pulled their bids because of worries over cost.
As Paris has insisted on hosting the 2024 games, Los Angeles has struck a deal with the International Olympic Committee to host the games in 2028.
Los Angeles took over as the official U.S. bid for 2024 after Boston withdrew in the face of stiff community opposition. Originally, five cities were competing for the games, but Rome, Hamburg and Budapest all dropped out.