Michu is delighted with his new deal at Swansea City.
The one-year extension means he is now contracted to the Swans until 2016.
"I'm happy here," he told the club's official website.
"I've read and listened to all the speculation, but it doesn't interest me, and that's why I've signed a new contract.
"I'm enjoying myself too much because the team always tries to play football."
He added: "It was an easy decision for me.
"I am living a dream here at Swansea.
"I'm probably enjoying my football more than ever. It's easy to play with this team and tonight I have the chance to reach the first final of my career (Swansea play Chelsea in the Capital One Cup semi-finals on Wednesday night).
"I'm really happy here in the city with the people, the club and the fans. Everyone has been so nice to me since I arrived.
"I think the club are happy with me because they have given me a new contract. I am certainly happy with the club."