Niall Horan's will become uncle soon

'One Direction' star Niall Horan will soon become an uncle as his brother Greg and his wife are expecting their first child.

The 19-year-old was the best man at his brother's wedding recently, reported the Sun Online.

"It's Niall's first niece or nephew so he's delighted," the source said.

The elder Horan got hitched to beauty therapist Denise Kelly recently near their home in Ireland and announced the good news after their wedding ceremony.