Their camaraderie is expressed in songs like Chasing Lightning, external – where Yunjin is teased for her obsession with Greek yoghurt, and Sakura describes her love of crochet – and their latest single, 1-800 Hot N Fun, external.
Powered by a sinuous bass guitar riff, it follows the band on a night out, kissing random strangers, demanding the DJ plays Beyoncé, and clinging to the dance floor until the break of dawn.
“I love that song,” says Yunjin. “It’s almost like a dialogue, we’re just all having a conversation.”
In the hook, the bandmates keep asking, “Where the heck is Saki?” – their nickname for Sakura – before someone responds, “She’s waiting down in the lobby.”
Does that mean Sakura’s always the first to be ready?
“Wow! Wow!” exclaims Yunjin. “That’s actually true! That’s the first time we’ve thought about it that way. That’s genius.”
There won’t be much time for partying this year, though. Le Sserafim have been speaking to the BBC in the middle of a long day of TV rehearsals, and fans have speculated they’re working on a new EP – completing a trilogy of releases called Easy, Crazy and Hot.
The title was hinted at in lyrics to Good Bones, but Yunjin skilfully avoids revealing any secrets.
“Will it even be called Hot? We don’t know?” she laughs.
“It might be cold, it might be warm. But whatever we come out with, it’ll be fire.”
Based on the evidence so far, there’s no reason to doubt it… as long as Eunchae avoids staircases.
