Milan have been attempting to sign Kaka this month.
"My idol growing up was Kaka," El Shaarawy told Forza Milan magazine. "No doubt about it. The game I remember the most as a youngster was the Champions League final against Juventus in 2003.
"That is a memory that gives me the greatest pleasure.
"As a player though, the game I will remember with the greatest fondness was when I scored my first goal against Udinese.
"I've been a Rossoneri fan since I was a child. They've always been my favourite club."