Embracing Perrie in a supportive hug, Corden asked the pop star, "Are you okay? It's been a tough few weeks, are you alright?"
"You know what? I'm good," Perrie said, eliciting a raucous cheer from the studio audience. "We're having an absolute blast in America. Things are going so well, and I just wake up every day and I thank my lucky stars that I have these three girls."
The girls of Little Mix have a lot to be excited about! They rocked the house at the Teen Choice Awards on Sunday -- where they also took home the award for Breakout Artist
-- and their single "Black Magic" has been no. 1 in the U.K. for three weeks in a row.
"It was incredible," Leigh-Anne Pinnock gushed. "She is the most loveliest person every, isn’t she? She's so lovely."
It turns out that joining Swift's squad means occasionally getting flown around in a private jet as well.
"We flew back with her on the way back and it was so nice," Leigh-Anne shared. "We had a girlie chat. She's wicked. And she's so business-minded. So inspirational."