Don't tell anyone this but she ghostwrote that album too (well actually her album leaked early and One Direction decided to cop the entire drum aesthetic for their own album)
There is a British pop singing group called Take That. They were first popular (immensely popular!) from 1990-1995. At that time, they also had five young men (there are only three now, and they are in their 50s). One, Robbie Williams, also was very outspoken, frequently witty and had a heavier Northern (working class) accent, like Louis. I saw an interview where Robbie also said "meself" (not in humor) as Louis does, and it made me laugh. It sounds quaint and cutesy, like southern Americans. I think it's by design that there is a colorful "character" in a boy band.
There actually is a 3rd one that wasn’t as bad as the first one & I kinda think she put Harry in a compromising situation (if she realized it or not) & he kinda of didn’t know how to answer 😮