While settling in for his weeklong residency on the U.S. late night talk show on May 15, things got a little awkward after the comedian joked about Jenner - who Harry dated on and off between 2013 and 2016. Harry took some big sips of coffee when Kendall Jenner came up - photos of the two vacationing together were leaked a little over a year ago - but the awkwardness didn't quell his good spirits.
"They're all named after the Kardashians", Taylor-Johnson said of his chickens on the late night show, before admitting that Kim and Khloe unfortunately died.
At mention of Kendall, Styles, 23, reached for his mug, kept his head down and later clapped.
Sensing an opening, James then giggled as he turned to Harry and asked, "Do they lay every day Harry?"
Fans loved Styles' first appearance of the week but were sad that he was appearing without his bandmates. Before going solo, Harry was a member of the extremely famous boy band, One Direction and is worth an estimated $50 million. "I don't really talk about it I guess", Styles says.
Styles also took part in a game of flinch, where Corden fires fruit at high speed towards celebrities standing behind a pane of glass, and performed his debut solo single Sign Of The Times while wearing a flared suit with multi-coloured flowers embroidered on it. Yeah. You read that right.
The One Direction singer is set to appear on the show until Thursday, performing a couple of songs and participating in some skits.
Styles' four-night residency concludes Thursday night when he joins Corden for a spot of "Carpool Karaoke".