Kaka admitted David Beckham played a key role in his decision to make a world-record £59million move to Real Madrid.
The brilliant Brazilian admitted he had received plenty of advice on the move from former Real player and Perez signing Beckham, who spent a short spell at Milan on loan earlier this year.
He also revealed that although the deal was only announced on Monday night, it had been in the pipeline for some time.
“I spoke to some friends, like Beckham, who has already played for Real. He said it’s a fantastic place to play. I spoke to him this past week and he kept helping me, he said I made a positive choice for my career’s growth,” Kaka revealed.
“I wanted this move to be announced sooner. For me it’s a relief that it has been announced now, although I have always be 100% focused on the national side.
“I’ve been weighing up the offer from Real Madrid a lot. It’s an important project for me to continue growing in my career. I’m not going to Real Madrid for money, as I had other offers. But I knew I would only leave Milan to play for Real Madrid.
“Only small details were missing, such as the medical exams I passed this morning. The deal was sealed long time ago”.
Kaka also said he hoped to put an end to Barcelona’s dominance of Spanish and European football, after the Merengues’ arch-rivals swept all before them this season en route to claiming Spain’s first league, cup and Champions League treble.
“This will be a tough season at Real Madrid, after all that Messi conquered with Barcelona,” he said.
“They’re the big favourites and deservedly so. I hope Barcelona’s hegemony will end in the coming years. Real Madrid will build a great team to win titles again, as it’s the club’s history”
Meanwhile he revealed he fell uncomfortable taking on the number five jersey once worn by Zinedine Zidane.
Perez had admitted he would like to see the Brazilian playmaker take on the shirt, but Kaka said he would not feel comfortable doing so.
He said: “Wearing the number five would be a great responsibility. Zidane was a great player, both for Real Madrid and for France, and I wouldn’t like to wear the same number as he did.
“We’re going to wait a bit before deciding which one to use.”
And finally he had words of gratitude to Milan for launching his career in Europe, while he was also elusive about whether he would end his career in Madrid.
“I will be 33 years old by the time the (Madrid) contract ends, with the World Cup in Brazil in 2014 still to come. Lots of things will happen,” he said.
“I’m not thinking today in ending my career at 33. I expect to write history there and sign a new contract, who knows, until 35. May be I’ll retire then.”
He added: “I want to thank Milan, as they were the club who put me on the international scene. They gave me the opportunity to become a big name in Europe.
“I’m happy to leave Milan by the front door, with a lot of friends. It has been very emotional to see what the Milan fans have done for me.”