UPDATE 1-Soccer-Kaka gets Hollywood treatment at Real Madrid

* Kaka unveiled Hollywood style

* Kaka to wear number eight shirt

* Dismisses talk of rivalry with Ronaldo (adds quotes)

MADRID, June 30 (Reuters) - Kaka was officially presented as a Real Madrid player in a Hollywood-style show to around 50,000 fans at the Bernabeu on Tuesday.

Director general Jorge Valdano had promised president Florentino Perez's second spell at the helm would be a "super-production" and they did not disappoint with the presentation of their first signing.

"It is a very special day for me. I hope I can write my name in the club's history books with victories and conquests," a slightly overawed Kaka said from a stage on the pitch.

The doors of the stadium had been thrown open to the public who packed the stands around a stage decorated with the club's nine European Cups.

Perez was up first, greeted with chants from the fans as he thanked Kaka for choosing Real Madrid before the Brazilian was given a pop star welcome as he emerged to roars from the crowd.

The Brazilian playmaker was presented with the number eight shirt and had to be protected by bodyguards as he walked around the pitch to greet fans.