Saoirse Ronan gives Americans the lowdown on Siobhan, Niamh and Tadhg

But it was "Coaimhe" that threw him: “Go to Hell”.

As we all know Saoirse Ronan has been working the Hollywood circuit over the past few months, on behalf on everyone that posses an Irish name.

Today, she appeared on The Late Late Show with Stephen Colbert for all those Tadhgs, Niamhs and Oisins of the world.