West Ham have signed winger Sofiane Feghouli from Valencia on a three-year contract for an undisclosed fee.
The 26-year-old Algeria international spent six seasons at the Spanish club, scoring 42 goals in 243 appearances as well as working under Gary and Phil Neville.
He was the 2012 Algerian Footballer of the Year and has earned 40 caps playing in three major tournaments.
Feghouli told the West Ham website : “I am very happy to sign for the Hammers and for Slaven Bilic. The history of the club is important for me in my decision.”
“It was the ambitious sporting project that was presented to me by the club and the manager. After considering the options with my family, it became an option that instantly stood out from the others.
“The direction of the club, the new Stadium, the squad, the manager and the opportunity to play in the Premier League made it an easy decision for me to join West Ham.”
Co-chairman David Sullivan feels the club have brought in another talent in the same mould as Dimitri Payet and Manuel Lanzini.
Mr Sullivan said: “It’s a deal myself and my team have been working on for many weeks.
“He’s an outstanding player and as big a star as Mahrez in his own country.
“If he adapts to the Premier League we have signed another very special player with experience all over Europe via the Cup competitions for his club.”
He is the Hammers’ second signing this summer following Borussia Monchengladbach midfielder Havard Nordtveit.