Being a parent can be a transformative experience that lets people figure out and learn a lot about themselves, and celebrities are no different. Just yesterday, an interview with Louis Tomlinson was released in which he spoke about how his son Freddie Tomlinson changed him as a person and how the baby has affected him as an artist.

While his son is about to turn one, the singer's response was not an outpouring of love that is usually expected from parents. When the radio hosts congratulated him and asked if he has "grown a heart" because of it he said:

"I don't think it's changed my writing too much. It's not as if I'm writing songs about my son. I mean, I love him, obviously, but yeah, it's affected how I am as a person, a little bit. I'd like to say it's made me a bit more mature. I don't know if that's actually true."

Wow, so honest! Louis then went on to say that he sings lullabies to the baby and that they are "nice moments." He said he wants to be a dad again saying: "I'm not about that but definitely in the future yeah, in the moment, I've got Freddie and I'm trying to stay career driven."

There are other celebrities who have spoken about postpartum depression, the pressures celeb parents go through and the responsibilities of being a parent—and some of their reactions might be surprising.

Click through the gallery to see how celebrities think their babies have changed them and their lives.

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