MADRID (AP)

Kaka ushered in Real Madrid's latest Galactico era as the Spanish club gave the Brazil player a rock-star welcome with an unveiling in front of at least 50,000 fans yesterday.

After president Florentino Perez introduced Kaka for the first time since his €65 million (US$92 million) acquisition from AC Milan, the 27-year-old playmaker shook his head in delight as fans chanted his name at the Santiago Bernabeu.

"Today is a very special day for me. I'm very happy about this new step in my career at Real Madrid," said Kaka, who will wear the No. 8 shirt. "Viva Madrid!"

Kaka, who passed his medical earlier yesterday, and Cristiano Ronaldo are Perez's major summer signings as he bids to make up for a season without silverware.

a great honour

"There are no words for today, it's an unforgettable day," Kaka said through a translator. "All of this is a great honour and responsibility, and not a negative responsibility but a positive one. I hope we can win titles and many victories."

Kaka took the stage in front of a backdrop featuring photos of iconic Madrid players Alfredo di Stefano, Raul Gonzalez, Juanito and Zinedine Zidane. Accompanied by a young fan donning the first Kaka jersey, he subsequently did a tour of one half of the 80,000-capacity stadium to sign autographs and salute to the pumped-up masses.

Kaka believes Madrid is in a great position to compete after finishing runner-up last year.

"Madrid has everything in terms of a fascinating team. And it's always been a reference for great players," Kaka said. "The project is very good. I can't wait to play."

Kaka agreed to a six-year contract with Madrid and will team up with Cristiano Ronaldo, the world player of the year who Madrid acquired for a transfer record £80 million (€94 million; US$131 million).