Niall Horan must be SO happy: His nephew Theo launches Mullingar's new Lidl store

One Direction star Niall Horan’s gorgeous nephew Theo has proved he’s taken to modelling.

Little Theo was pictured with his dad – the 1D singer’s brother Greg – as he opened the new Lidl in Mullingar this morning.

Posing at the tills wrapped up in their warmest winter jackets, the pair were all smiles as they welcomed shoppers.

All smiles: Greg and Theo | MOLLOY PHOTOGRAPHY

It has been a year of firsts for the tot, who turned one in July, after getting signed to agency heavyweight Andrea Roche Models.

She said: “He is so cute and really well behaved and he loved getting his picture taken which is great for modelling.

“Everyone at the open day fell in love with him, he’s so adorable.”

He also set up his first fan site and has had his face minted on a coin to commemorate his first birthday.

Young shopper: Theo in Lidl | MOLLOY PHOTOGRAPHY

The 17-month-old is also set to publish his first personal magazine this Christmas called The Lid, which will feature fan generated content.