Ronald Koeman has been confirmed as the new Barcelona manager on a deal until 30 June 2022.
The Catalan giants announced the appointment on Wednesday, confirming a move that has long been expected.
Koeman, 57, replaces Quique Setien who was sacked following the humiliating 8-2 loss to Bayern Munich in the Champions League quarterfinals on Friday.
The Catalans finished second in La Liga last season, failing to win a trophy for the first time since 2007-08.
Former Southampton and Everton boss Koeman will hold a press conference later at 5pm Barcelona said in a statement.
Koeman leaves his post as Netherlands manager and returns to the Nou Camp which he graced for six years as a player between 1989 and 1995, winning four league titles and scoring the winning goal as Barca won their first-ever European Cup in 1992.
His journey into football management began as an assistant to Louis Van Gaal and coach of Barça B in the 1998-99 season and he has since gone on to manage in the Premier League, La Liga, the Dutch league, the Portuguese league and also on the international stage with the Netherlands winning eight trophies at club level.
He won league titles with Ajax and PSV and a brief stint at Valencia in 2007 brought Copa del Rey success, but he was sacked after the side finished only two points above the relegation zone in La Liga.
After spells at AZ Alkmaar and Feyenoord, Koeman was appointed by Southampton in 2014 where he was a huge success, guiding the Premier League club to seventh- and sixth-place finishes, which resulted in qualification for the Europa League group stage.
He joined Everton in 2017 but lasted only 16 months at Goodison Park departing with the club in the bottom three.
In February 2018, he was appointed coach of the Dutch national team, who had failed to qualify for the 2018 World Cup and led the side to the final of the UEFA Nations League and helped them qualify for Euro 2020.