“It’s like a toe-to-toe thing” says Usher of his battle with Barack.
A previous video for the song utilised viewers' web cams and facial recognition technology
Song accompanied by interactive video that allows viewers to look into the eyes of unarmed victims of gun crime
Jay Z's music streaming service was launched on Monday
Track will come as a free download in cereal boxes
His son tells him that he's the real star in the family<em><em></em></em>
He performed his 2012 single 'Climax' with the rock band in Brooklyn