The Brazilian surpassed 100 goals for the club as he inspired them to a 3-0 win over Atalanta and says he was thrilled to give the fans something to cheer
The Brazilian scored twice in the 3-0 win over Atalanta to take his tally to 101 strikes over his two spells with the Rossoneri and the former Real Madrid man admits it was a special moment.
"I don't know how to explain it," the 31-year-old told reporters after the match. "I'm glad to be a part of the history of this club.
"Each goal I score is exciting. Every time I hear the fans it's exciting. It gives me a great feeling because I know it comes from their heart.
"This was the best way to start 2014."
Milan CEO Adriano Gallini paid tribute to Kaka's achievement and revealed Real Madrid coach Carlo Ancelotti was also keen to congratulate the player.
"101 goals for a player who isn't a striker is rare," he said. "It shows class and value.
"Ancelotti saw it and sent me a message to say he was pleased. After the first training session in 2003 [at Milan], he called me and said: 'I've never seen anyone so strong.'
"I don't know if the season turned around today. We have three competitions. At the end of the year we'll do the assessments."