Aston Villa have signed Jota from city rivals Birmingham for an undisclosed fee.
The 27-year-old Spanish attacker has signed a two-year contract with the Premier League newcomers. He is reunited at Villa Park with Dean Smith, who was also his manager at Brentford.
Meanwhile, Villa midfielder Gary Gardner has completed a permanent transfer in the opposite direction for an undisclosed fee.
Gardner, 26, spent last season on loan at Blues but he has now signed three-year contract at St Andrew's.
"I worked with Jota at Brentford. He's a superb, talented player and Birmingham signed him as their record transfer," Villa boss Smith told the club's official website.
"I'm really happy to have him back working with us. He's got great ability, great balance and a great eye for both goals and assists."