For those of you that need reminding, Katie and Peter released a cover of the Aladdin classic, "A Whole New World", during their relationship - and were ridiculed for it for approximately 672 years, so we reckon Liam's pretty justified TBH.
"He admitted: "[Cheryl's] got him in a sleeping pattern already, we're getting seven hours of sleep a night.
MORE: More Kids For Cheryl And Liam? While it's obviously a joke and Payne has been committed to parenthood, the singer admits that being a father is "the craziest thing ever".
Cheryl and Payne welcomed their first child together this March. Liam explained: "I'm not gonna lie, she makes all my outfits for wherever I go".
However, with Bear's dad, Liam, on the single promotion trail there has been significant talk about the tiny addition to the Payne family. Chezza hasn't been seen in public since March, when she gave birth to her and Liam's son Bear.
And despite many new parents being fully aware of the pain that comes with sleep deprivation, Liam has managed to avoid that entirely - thanks to his partner.
You may remember that there was a time when One Direction was a five-piece, when terrible-at-dancing Zayn Malik was a part of the group.