Obama takes a swipe at himself as chat show host

US President Barack Obama has slipped into the role of a talk show host.

He nudged Stephen Colbert away from his perch on Monday during an appearance on the comedian's satirical program and poked fun at himself in the process.

"You've been taking a lot of shots at my job. I've decided I'm going to go ahead and take a shot at yours," Obama said before sitting down alone behind Colbert's desk.