The One Direction singer was best man for his siblings

Niall Horan‘s older brother Greg has been reminiscing about his wedding day.

One Direction singer Niall, 20, was best man at Greg‘s nuptials to wife Denise Kelly in County Westmeath, Ireland last March.

The loved-up couple celebrated their first anniversary two weeks ago and Greg has now posted a sweet Twitter photo of himself and Niall picking up their outfits.

‘The day before my wedding great experience the best day ever me and Niall together after collecting our suits,’ Tweeted Greg.

Greg and Denise announced that they were expecting on their big day and Niall became proud uncle to their son Theo in July 2013.

Blond hottie Niall is very close to Greg, who was thrilled that the 1D star took time out of his busy schedule to play such an important part in his and Denise‘s ceremony.

‘One of the very special days I had Niall with me proud too call him the best brother in the world,’ Tweeted Greg last month.

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Anna Duff