United Kingdom, June 3 -- Joe Jonas' children have given him "the reason to be alive".

The Work It Out singer has daughters Willa, five, and three-year-old Delphine with ex-wife Sophie Turner and he loves the fact that just a hug from his girls can help turn around a bad day.

Speaking with brothers Nick and Kevin Jonas on their Hey Jonas! podcast, he said: "I'm a single dad and I coparent with my children's mother.

"I think my children have given me purpose again in my life.

"[They are] the reason I do what I do now."

The 36-year-old star noted he works hard when he's away so he can enjoy his time with his daughters when they are all together.

He added: "They've really given me the reason to be alive, I would say.

"I think, in my s...