Transcript for Larry Birkhead and Helio Castroneves Trade Lives on 'Celebrity Wife Swap'
First, Amy, tonight's episode of "Wife swap." It reveals their life now. Reporter: He's one of Hollywood's most doting dads. At 41, the only woman in Larry birkhead's life, is his daughter, dannielynn. Does anybody help you out with your daughter. My sister. Okay. We can send your sister and exchange her for someone's wife, or fiancee, or girlfriend. I packed her bag. Reporter: I'll pay for her ticket. The show tonight on ABC, offers an intimate glimpse at Larry and dannielynn's life. My rules. They're going to start today. No. I'm both parents to dannielynn. I don't have the good cop/bad cop kind of thing. And I said the words substitute mom. And she immediately lit up. Really? Reporter: Dannielynn's mother, Anna Nicole, died when she was 5 months old. Three days after she was born, her half-brother, Daniel, passed away. It's so much for her to understand. There are pictures of Daniel around the house. And her mom. She knows they're angels in heaven. Reporter: Now, dannielynn, who recently modeled in her own guess ad, just like mother, Anna Nicole, may inherit much more than just her mother's looks. She stands to inherit close to $50 million. Is that true? People tell me what's going on with that whole thing. It's not something I live my life. I think that more so than being a celebrity, is something that caused her heartache. Reporter: And for eight years, birkhead has harbored his own heartache. What do you think about your dad having a girlfriend? Good? How would that be? Awesome. Reporter: You want your dad to get married? You do. Do you want a brother or sister? For you, any desire to get remarried? Dannielynn has been pushing me out of the door. The other day, I was watching "Dancing with the stars." And there was PETA. I think I missed her by a couple days in New York, too. It's a beauty. Reporter: Between the day-to-day chaos of being dad and mom -- Lunches. Reporter: Birkhead is ready to start a new chapter. It put it in perspective. You do need to spend time for yourself. "Celebrity wife swap" at 10:00 P.M. Eastern, 9:00 central, here on ABC.
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