Conan stopped by The Late Show to catch up with fellow late-night host Stephen Colbert and revealed a shocking discovery his doctor made!

After doing a DNA sample, the doctor said he has never had a result like Conan’s before

Turns out, not to many people’s surprise, Conan is 100% Irish!

Apparently, even Irish people born and raised in Ireland are never fully Irish which made this discovery so shocking and it turns out it’s because Conan comes from a family of inbreds!

So this is actually the one time it’s not great to be 100%?

The more you know!