President Obama has appeared on Between Two Ferns, the Funny Or Die chat show hosted by Zach Galifianakis.

The clip has gone viral online, being shared millions of times and driving traffic to HealthCare.gov, the reason Obama agreed to be a guest in the first place.

Obama agreed to be a guest on the spoof show in order to promote the controversial Affordable Care Act and remind people to sign up at HealthCare.gov. Which they now appear to be doing.

Most people love this episode of Between Two Ferns, and seeing Obama having a little fun in order to promote one of his big causes. But not everyone, with Republicans attacking the president.