The Brazilian has joined on loan for the remainder of the season.
Villa confirmed they possess an option to buy once the loan expires.
The Premier League released a statement on Tuesday, which read: "Aston Villa and FC Barcelona have agreed terms for Philippe Coutinho to spend the rest of this season on loan at Villa Park. The agreement also includes an option-to-buy."
Gerrard revealed on Tuesday that Coutinho could make his debut against Manchester United this weekend.
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!