On Friday, Nov. 1, the One Direction boy-bander—along with Harry Styles, Liam Payne, Louis Tomlinson and Zayn Malik, naturally—met up with the "Dark Horse" singer in Tokyo. All the guys seemed happy to pose for pics with the brunette beauty, but it was Niall who was clearly head over heels!
The 20-year-old Irish cutie Instagrammed a selfie with Katy cuddled up to him, cheek-to-cheek, writing, "she said yes ! It's happening! Haha."
He then posted a shot of the 29-year-old pop star surrounded by all five 1D boys, captioning the precious pic, "Me and my groomsmen and my lovely wife hahahaha."
You never know, Niall, you just never know. Katy was also excited to meet Niall—and Harry, Liam, Louis and Zayn. "Today could not be a better day," she tweeted. "I get to hang with @pamyurin [a Japanese artist] & @onedirection on MUSIC STATION in TOKYO!"
It's been a good week for K.P., actually. Her album Prism debuted at no. 1 on Billboard Top 200 and become the biggest record by a pop female in 2013. "For that I say THANK YOU," she tweeted. "I hope you are enjoying all the colors #PRISM has to offer. I promise to continue to give back...Tour next year… And so many opportunities to be a light very soon. Your love & support for the music means the world to me. X."