'She Said Yes': Niall Horan Confirms Katy Perry Engagement Star proposed on Twitter last month.
Look out John! You've got competition for Katy (Instagram/NiallHoran)
The 20-year-old had to wait quite a while to find out his answer, having popped the question on October 21, after The Roar star performed on the X Factor.
"I love you @katyperry! Thank you! Ps. Will u marry me?" Niall joked.
