(CNN) -- Hilary Duff says her new album is "very positive" but admits that it started out "a lot heavier and a lot darker" because of the separation from her husband, Mike Comrie. 

"I'm separated from my husband right now, which has been a very difficult thing to go through," she told Billboard's "Pop Shop" podcast. "In the beginning, the album was a lot heavier and a lot darker, because I had to get that out. Once I did get that out, a lot of fun came." 

Duff married Comrie, a former pro hockey player, in 2010 after dating for three years. Their son, Luca, was born in 2012. Duff and Comrie announced their separation in January. 

Duff, 26, admits that she's "nervous" after being away from music for seven years. Her just-released single, "Chasing the Sun," is from her still-untitled album, which will be her first studio release since 2007's "Dignity." 

She says she first started thinking of new material when she was pregnant with her son. After having the child and taking another year, she was even more anxious. 

"I felt like I was missing a big part of myself," she said. 

Duff established a successful singing career on the heels of her popular Disney show, "Lizzie McGuire," which aired from 2001 to 2004. She spent most of her teenage years touring and says that turning 20 was a big factor in leaving the road. 

"It was time for me to be a person, and the break just ended up being a long time," she said.  QUESTIONS:

Q1:
1. Who is the article centered around?
2. Who does the article talk about?
3. What celebrity is the main focus of the article?
Q2:
1. What does Hilary Duff think about her new album?
2. What are Hilary Duff's emotions regarding her new album?
3. How does Hilary Duff feel about her just-released album?
Q3:
1. Was Hilary Duff's new album always positive?
2. Did Hilary Duff's new albums start out as a positive one?
3. Did Hilary Duff's newly released album always have a positive tone?
Q4:
1. What was Hilary Duff's new album like when she began recording?
2. What sort of songs was Hilary Duff recording at first on her new album?
3. 
Q5:
1. Where did Hilary Duff begin her singing career?
2. Where did Hilary Duff get her start in entertainment?
3. What was the birthplace of Hilary Duff's music career?
Q6:
1. When was Lizzy McGuire on TV?
2. During what years was Lizzy McGuire on air?
3. When did Lizzy McGuire air on television?
Q7:
1. Which channel aired Lizzy McGuire?
2. Which channel was responsible for airing Lizzy McGuire?
3. What channel could one find Lizzy McGuire on?
Q8:
1. Was Hilary Duff in her 30s during Lizzy McGuire?
2. Was Lizzy McGuire produced while Hilary Duff was in her thirties?
3. Did Hilary Duff star in Lizzy McGuire in her 30s?
Q9:
1. How old was Hilary Duff when Lizzy McGuire was on air?
2. At what point in Hilary Duff's youth did Lizzy McGuire air?
3. How old was Hilary Duff when she starred in Lizzy McGuire?
Q10:
1. Was Hilary Duff once a believer in living happily ever after?
2. Did Hilary Duff used to believe in finding her soulmate and having a wedding?
3. Did Hilary Duff used to feel as though she had found her soulmate and had a perfect wedding?
Q11:
1. Does Hilary Duff have any children?
2. Has Hilary Duff got kids?
3. Is Hilary Duff a mom?
Q12:
1. Who does Hilary Duff have children with?
2. Who is the father of Hilary Duff's son?
3. Who does Hilary Duff share a son with?
Q13:
1. What is Mike Comrie's profession?
2. What does Mike Comrie do for a living?
3. How is Mike Comrie employed?
Q14:
1. How long did Hilary Duff and Mike Comrie date before getting married?
2. For how long did Hilary Duff and Mike Comrie date before they tied the knot?
3. How long did Hilary Duff and Mike Comrie's courtship last before they married?
Q15:
1. What's the name of Hilary Duff and Mike Comrie's son?
2. Who is the son of Hilary Duff and Mike Comrie?
3. What did Hilary Duff and Mike Comrie name their son?
Q16:
1. Was Luca born in 2005?
2. Did Hilary Duff give birth to Luca in 2005?
3. Is 2005 Luca's birth year?
Q17:
1. When was Luca born?
2. What was the year of Luca's birth?
3. In what year did Hilary Duff give birth to her son Luca?
Q18:
1. Was Hilary Duff happy to have taken such a long hiatus between albums?
2. Did Hilary Duff feel quite calm about having taken such a large break between albums?
3. Was Hilary Duff feeling good about the length of time that had passed since her last album?
