Prince Jackson was always shocked when "big muscle dudes" would faint when they met his father Michael Jackson because he was just dad to him and his siblings.

Prince Jackson

Prince Jackson

The 15 year old admits he and his older sister Paris Jackson, 18, and younger brother Blanket Jackson, 14, were aware that their father was the King of Pop and one of the most famous artists in the world but it was still always a surprise to him to see his fans become delirious with excitement when they encountered him.

In an interview with 'Good Morning America', Prince said: "Even after we realised he was the King of Pop - even to this day, I don't think it holds the same weight to us that it does to other people, because he was our father, our dad or daddy, whatever you want to call it.

"What blew my mind was when I saw these big muscle dudes fainting [around him] and having to be dragged out."

Prince was appearing on the TV show to speak about Heal LA, a charity organisation he co-founded which is inspired by the lyrics of Michael's song 'Heal the World' and his own charity the Heal the World Foundation.

Speaking about the project, Prince says he aspires to live up to the 'Thriller' hitmaker and the good work he did to help others before his death in June 2009 at the age of 50.

Prince said: "[The charity] is inspired by 'Heal the World.' We primarily focus on child abuse, homelessness and hunger in [the] Los Angeles area. People don't understand how the little things can add up and make a big difference in someone's life.

"As we were growing up, my dad always said, 'I don't really care what you do in life as long as you're happy doing it and you're the best at what you do. If you want to be a janitor at a high school, you should be the best janitor you can be ... I was born Prince. That was the name my dad had given to me. But my dad earned the [title] 'King of Pop,' and that's through hard work and years of training and everything he worked so hard to get. It's a form of motivation, because my name is Prince, but for all intents and purposes, I am the king's son, working to get my own [title]."