Zarate taking inspiration from West Ham hero Tevez
The Argentine striker hopes to make an impact at Upton Park, following in the footsteps of Tevez, who dramatically inspired West Ham to Premier League safety in 2006.
"Carlos is a fantastic player and a fantastic person," Zarate told the club's official website. "I don't think I can do the same as he did, but I hope I can become as big a favourite at this club as he was.
"I hope I will play good football and reach the highest possible level. I am very confident I am going to succeed here."
For the big stories and the banter follow us on Twitter: @tribalfootball