Mullingar superstar and style icon Niall Horan has given his stamp of approval to the official RTÉ Does Comic Relief t-shirt. 

Ok, so we're sure even Niall might agree with us that style icon is a little bit of stretch, but the Nice to Meet Ya hitmaker is definitely someone who knows what's cool, and he's just given his stamp of approval to the official RTÉ Does Comic Relief t-shirt.

The t-shirt, which has been designed by another cool dude, Northern Irish artist Oliver Jeffers, is available for a limited period online.

Taking to Twitter to share a dashing picture of himself modelling the "Gura Míle" garment Niall wrote: "This t-shirt designed by the brilliant Oliver Jeffers is available now as part of #RTEComicRelief. It's a thing of beauty for a great cause..."

The t-shirts cost €20.00 (plus P&P) for adult sizes and €15.00 (plus P&P) for the kids' version. All proceeds after manufacturing and distribution costs will go directly to RTE Does Comic Relief's charity partner The Community Foundation for Ireland.

Click here if you would like to order one