Aguero, 32, has penned a two-year deal at the Camp Nou following a prolific 10-year spell at Manchester City.
He's contracted until the end of the 2022/23 season and has a buy out clause of £86 million.
Barca took to Twitter to announce the transfer of the Argentine forward before revealing all the details of their first major summer signing.
:round_pushpin: Ciutat Esportiva Joan Gamper
:white_check_mark: Revisión médica :ok_hand:
:blue_heart::heart: #KunCuler pic.twitter.com/ZKyE44c7gg
- FC Barcelona (@FCBarcelona_es) May 31, 2021
He leaves the Etihad outfit as the club's record goal-scorer with an incredible 260 goals.
Aguero returns to La Liga following a spell at Atletico Madrid, where he enjoyed a five-year stint - scoring 102 goals before securing a switch to Man City.
Featured Image Credit: Barcelona
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