The Jackson children had a unique childhood. As devout Jehovah's witnesses, they did not celebrate birthdays or Christmas because of their beliefs.
"I would love to have experienced what it would be like to celebrate Christmas and birthdays. ...I had my first birthday party when I was 23 years old. And I'd never celebrated my birthday before then," she said. "You kind of feel like you missed something. But then again, you have to, to say to yourself, it's like a catch-22 -- well, how can you miss what you didn't have? You know? I -- we grew up pretty quickly."
Two days before her 43rd birthday was the last time Jackson saw Michael.
"We had a lot of fun, laughing. ...I was being silly, acting silly. And he was sitting in front of me and just cracking up, laughing at me," she said. "I was being loud. And he thought it was so funny. I was just being stupid, acting silly."
Watch Robin Robert's exclusive interview with Janet Jackson, "In the Spotlight," Wednesday, Nov. 18 at 10 p.m. ET.