(CNN)  -- He burst on the music scene in the 1970s with the Commodores and then went on to a major solo career with hits such as "All Night Long" and "Hello."





Lionel Richie and his daughter, Nicole, gave their first joint TV interview in six years to CNN's Larry King.





She made a name for herself on the TV series "The Simple Life," which followed the exploits of her and fellow socialite Paris Hilton, and in the tabloids.





Father-and-daughter Lionel and Nicole Richie have been making news for decades, but rarely together. In their first TV interview together in six years, they talked with CNN's Larry King about their relationship; her time in rehab; Lionel's first grandchild, Harlow; their growing family; and more.





The following interview, scheduled to air Thursday night, has been edited for brevity and clarity:





Larry King: You did "American Idol." A European tour. A new CD. You ever give thoughts of just cooling it?





Lionel Richie: My answer to that is very simple. I don't like fishing. I'm pretty much like you. This is my hobby.





King: What's the new album ["Just Go"] about?





Lionel Richie: You know what I decided to do on this album? Something different. Instead of controlling, which is what I love to do -- I'm the writer, I'm the arranger, I'm the producer, I'm the singer -- I decided [to] start another way. I just gave up the power completely. There is only one song on this album that I actually wrote, called "Eternity."





King: The "American Idol" thing. Was that fun? Why did you do it?





Lionel Richie: It's the best fun in the world. Danny [Gokey] was so wonderful. He kept saying, "Suppose I mess up or suppose I sing your line instead of my line," and I said, "You can't mess this one up. And if you feel like you want to sing my part, sing it loud and strong." And of course he nailed it.





It was so much fun to watch everybody backstage. The tension of what goes through that show, I don't think I [could] do it.





[Nicole Richie joins the interview]





King: What is it like to be with her in this setting?





Lionel Richie: I'm so proud of her right now. There is such a pride that she has turned this corner. She is an amazing mother. I want the world to know where she is.





King: Now you're pregnant with a second child, right?





Nicole Richie: Yes, yes I am.





King: And the father [Joel Madden] is the same?





Nicole Richie: Yes.





King: You going to get married?





Nicole Richie: Eventually, yes.





King: But that's not important or paramount?





Nicole Richie: I think for both of us, we are going to do it because we want to, not because that's what you do.





King: What kind of grandfather is he?





Nicole Richie: Well, he's very animated. He smiles like this all the time, and so he's nothing but fun for Harlow. She absolutely loves him.  Watch Nicole Richie talk about her daughter »





King: Nicole, you've been through some turbulent times. You've had drug abuse, wild-child behavior. Entered rehab in 2003. How have you come through all of that?





Nicole Richie: With the support of my family, really. I've always stayed really close with my mother [Brenda] and my father. I have really great friends. And I just have a really great circle around me who support me no matter what, don't judge me no matter how low I've ever gotten.





King: How did you deal with it
What does Lionel Richie say about Nicole? What helped Nicole Richie through drug rehab? What did Nicole say about Lionel? What Nicola said about Lionel? What Nicole said?
I'm so proud of her right now. There is such a pride that she has turned this corner. She is an amazing mother. I want the world to know where she is. With the support of my family, Well, he's very animated. He smiles like this all the time, and so he's nothing but fun for Harlow. She absolutely loves him. Well, he's very animated. He smiles like this all the time, and so he's nothing but fun Eventually, yes.
question: What does Lionel Richie say about Nicole?, answer: I'm so proud of her right now. There is such a pride that she has turned this corner. She is an amazing mother. I want the world to know where she is. | question: What helped Nicole Richie through drug rehab?, answer: With the support of my family, | question: What did Nicole say about Lionel?, answer: Well, he's very animated. He smiles like this all the time, and so he's nothing but fun for Harlow. She absolutely loves him. | question: What Nicola said about Lionel?, answer: Well, he's very animated. He smiles like this all the time, and so he's nothing but fun | question: What Nicole said?, answer: Eventually, yes.