The 26-year-old has signed a five-year contract with the Russian giants.
The Russian side confirmed their swoop for the forward on their official website on Monday evening.
Hulk has long been linked with a move to Chelsea.
Reports claim Zenit have paid around £40million for the former Tokyo Verdy superstar.
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Liverpool have unveiled their new home kit for next season, sticking with the hugely popular retro styling of the current shirt.
The reputation of the Premier League means it is the most popular and one of the most watched leagues in the world.