Manchester City have signed Belgium midfielder Kevin de Bruyne from German side Wolfsburg for a club record £55 million.
The 24-year-old has agreed a six-year deal at the Etihad.
It is the second highest fee paid by a British club after Manchester United's £59.7 million signing of Angel Di Maria.
"It takes a special player to improve our squad," said City boss Manuel Pellegrini.
"We like to play attacking, attractive football. Bringing in a player like this will only aid us.
"He has all of the mental, physical, tactical and technical attributes required to fit straight in."
De Bruyne said: "I want to reach the highest level possible as a player and I think the most important thing is that at the end of the season we can be happy and maybe have some titles."
De Bruyne, who will wear the number 17 shirt at the Etihad, joined Wolfsburg in January 2014 for a reported £16.7 million after making three Premier League appearances for Chelsea.
The signing is City's fourth big summer arrival after Raheem Sterling, Fabian Delph and Nicolas Otamendi.