When a guest on your show is bilingual, you might as well get the full value for having them on by getting them to double up as a translator.
Kate Beckinsale is one heck of an interesting guest, capable of covering topics ranging from Jane Austen and fighting vampires in lycra through to penis lamps she's received from her ex, Michael Sheen.
On top of all that though, she can also speak Russian (she studied it at Oxford University) and Late Show host, Stephen Colbert asked her to help him translate some key Russian phrases that he might need.
Naturally all three of the phrases pretty much take the piss out of the Russian hacking scandal as well as President elect Trump and Vladamir Putin.