Elite Beat Agents Easter Egg - Leonardo da Vinci reference

In the level in Italy with the song called "I was born to love you", the person in need is an artist named Leonard, whose goal is to win a girl's love so he can make a portrait of her. Her name is not mentionned, but she obviously looks like Mona Lisa, one of da Vinci's famous paintings. All of these are references to Leonardo da Vinci.