Obama filmed jamming out to Eminem before DNC speech

US President Barack Obama has been caught on video bobbing his head to an Eminem song before delivering a speech at the Democratic National Convention, in an apparent attempt to pump himself up.

The behind-the-scenes video, posted to Youtube by Hillary Clinton’s campaign, shows Mr Obama bopping his head to the rapper’s 2002 hit “Lose Yourself”.

The video also features clips of Clinton and Obama meeting backstage before walking out to an overwhelming show of support from the crowd.