Following up on the remarkable must-cop trend(piece)-setting mixtape House Of Balloons, Canadian narco-pop artist the Weeknd presented the track "Rolling Stone," which we bundled with news of two more mixtapes promised for this year. While you wait: Listen to "The Birds (Part 1)," a new song that went online yesterday: [videoembed size="full_width" alignment="center"][/videoembed] (via Miss Info via P4K)