Imagine Dragons' Dan Reynolds' divorce has affected his daughters

Speaking to PEOPLE.com, he said: "I have three little girls and this year for my family has been kind of a difficult year for personal and emotional reasons and just going through that and watching the effect on my girls has been very hard."

When Dan announced the split, he asked fans to be respectful of his family's privacy while he and Aja tried to work out the best way to co-parent their kids.

He wrote at the time: "after 7 beautiful years together, Aja and I's marriage has come to an end. Our children continue to be the most important thing in our lives, & we will continue to co-parent them with all our love... I ask that you please respect our privacy at this time as we work through this as a family. [sic]"

The pair first met in 2010 at a nightclub in Las Vegas after hitting it off with their shared love of music, and they tied the knot just a year later.

Speaking about meeting Aja, Dan said previously: "It seemed that music was the only link we had. But as we got to know each other on a more personal level, we found that we had so many similarities in our hearts that it was scary.

"I never had met someone who I connected to so instantly. Everything about her captivated me. I needed to know her."

Aja, who is also a musician, admitted at the time that she didn't plan on being in a relationship.

She explained: "I was kind of at a place in my life where I thought, 'This guy is so cute, but I'm not really interested in meeting anybody right now'.

"But we really just fell in love, and about a year later we ended up getting married and then we had a baby."