Nick Jonas thinks ''honesty'' is the most important thing in a relationship.

The 'Find You' hitmaker - who previously dated beauty queen Olivia Culpo - feels it is important for everyone to be ''upfront'' in a relationship even if it isn't what you think the other person would want to hear.

Asked what he looks for in a partner, he said: ''You gotta be honest, trustworthy, and a dog person - not a cat person. I'm kidding, they can have a cat. It's fine, I just prefer dogs ... My best piece of dating advice is to be upfront, be honest. Even at times if you think it's not always exactly what the person wants to hear, always the truth is better than being dishonest or not being upfront.''

And Nick's track 'Jealous' - which he wrote about his split from Olivia - is his favourite song he has penned as it really ''captured a moment in time'' for him.

He told Buzzfeed: ''My favourite song that I've ever written in my career is 'Jealous'. [It was] a really important song for me when I broke off solo - it captured a moment in time for me.''

It comes after Nick confessed he would ''absolutely'' love to be a father one day as he already loves being an uncle to his nieces, three-year-old Alena and nine-month-old Valentina.

He shared: ''Absolutely [I want to be a father]. I mean I have two beautiful nieces. I'm the godfather to one of them. I held my nieces and it all kind of made sense. My brother Kevin is the happiest man in the world and he loves his wife and his beautiful girls.It's an amazing marriage and he's a great father. And I think that it's one of those things where he got married young and had kids fairly young in today's world. But he said to me, 'I think it's the best choice I've ever made. I think this is an amazing thing for me.' I think it's not right now for me. But at some point in the future, I'd love to be a father.''