Final answer:
The band that Simon Cowell organized on "The X Factor" on July 23, 2010, which went on to come in third on the show and have the best-selling album worldwide of 2013, was called One Direction.
Step-by-step explanation:
The band that Simon Cowell organized on "The X Factor" on July 23, 2010, which went on to come in third on the show and have the best-selling album worldwide of 2013, was called One Direction. One Direction gained immense popularity with their debut album "Up All Night" and became one of the biggest boy bands in the world, selling millions of records and attracting a massive fan following.