The England midfielder, currently on international duty at St George’s Park, has signed long-term deal at Anfield. He is Liverpool’s fourth senior summer signing.
Chamberlain told liverpoolfc.com: “I’m delighted to have signed for Liverpool and a big thank-you to everyone here at the FA that has made this possible.”
“I’m here with England and we’ve got two big games coming up, so I want to focus on them. But I can’t wait to get to Melwood and you’ll hear first from me on LFCTV.”
The 24-year-old, who has made 132 Premier League appearances, could make his Liverpool debut when they visit Manchester City on Saturday 9 September.