Former One Direction star Liam Payne says it ''hurts'' when he doesn't get to spend time with his son Bear and admits he can go weeks without seeing him.

The 26-year-old, who shares his son with ex Girls Aloud star Cheryl Tweedy, has said juggling his music career with being a dad is difficult.

When asked on The One Show how he felt about leaving Bear when he goes on tour with his upcoming debut solo album LP1, he said: ''I don't know, I am quite excited to go out (on tour).

''It is difficult being on the road, going out and promo-ing. It has been hard to get home and see him.

"Loads of random things happen with kids all the time. Like if he's not very well, sometimes you miss dates and things. Then a couple of weeks go by, and I haven't seen him in ages.

''It hurts, I do want to go out on tour, I'm just going to have to figure out the schedule properly.''

Payne recently went public with his new romance with 19-year-old Maya Henry and he has credited her for helping him to feel more relaxed about life.

''She's awesome ... it's kind of got to the point with my life, where I'm like, screw this. It's not worth my happiness.

"If someone is going to take a picture, someone is going to do something. The difference is with her, she's so relaxed that it helps me relax in a situation.

''It's been quite nice just going out. I've managed to explore a lot more of London than I ever have actually my life, which has been quite fun.

''My life has been quite normal recently, which has been a break. It's good. I'm enjoying myself right now.''

Liam Payne recently said that public scrutiny put a strain on his relationship with his ex-partner Cheryl.