The chat show legend was on The Late Late Show last night
Stephen Colbert took Mr. Obama in to talk work, a corner office and photos of cats...
This will make you think twice about how much you're posting online...
"This volcano will destroy this world"
"It's been a privilege to be your Taoiseach for five years, though the long 12-hour weeks have begun to take their toll on your humble servant"
Know anyone who'd be good on this?
Have you watched this yet?
"Then there was a lad called Shredder and he'd an auld tin hat on his head..."
Fasten your seat belts...
Do not watch these alone – you've been warned