5 Seconds of Summer think Louis Tomlinson will "step up to the challenge" of becoming a father.
The 'She Looks So Perfect' singers - who supported Louis' band One Direction on two world tours - think it's great news that the 23-year-old star is set to have a baby with former lover Briana Jungwirth.
Drummer Ashton Irwin said: "It's a beautiful thing. Childbirth is awesome. If it came from a one night thing, who cares? The way it's being dealt with is cool.
"The kid's being brought into a great position. He's never going to be hard-up. He's going to be brought up in a loving situation. Louis will step up to the challenge. My mum had me at 20."
However, the 21-year-old heartthrob - who is now headlining his own tour with bandmates Luke Hemmings, Michael Clifford and Calum Hood - insists he has no plans to become a father himself anytime soon as he's enjoying playing the field.
He told the Daily Mirror newspaper: "We're single. We date every now and then, like regular dudes.
"But then you're spotted with a lady and they are automatically your girlfriend - it's so intense."