Pete Wentz says being a father makes him wish the world was a happier place.

Pete Wentz

Pete Wentz

The Fall Out Boy star - who has seven-year-old son Bronx with his ex-wife Ashlee Simpson and two-year-old son Saint with his partner Meagan Camper - wishes there was less negativity in the world.

He told DIY magazine: "I think that I look out at the world sometimes, especially having kids, and all I see is negativity and hate that's so divisive.

"It bums me out and I know that people have a hard time - I've had a hard time - and one of the things you should know if that you can make it out of the other side and be stronger because of that. That's why I think it's important."

Meanwhile, the 37-year-old musician previously likened fatherhood to "taking happy pills".

He said: "I have two kids, and if I hang out with them it's pretty much like taking happy pills. When you hear a one-year-old laugh, it's pretty much the funniest thing on the planet. It changes my mood ...

"My highs, my happiness are really high and my lows are very low and I'm not able to regulate between the two. Through actual therapy and having kids it's way more under control and something I can see when I'm on the roller coaster and control it more."