Lance Armstrong, the disgraced former cyclist who was stripped of his seven Tour de France titles for doping, appears in a new music video about the practice of using banned performance-enhancing drugs by the band Future User.

The band, the latest project from Rage Against the Machine and Audioslave bassist Tim Commerford, released the video for their latest single "Mountain Lion" on Tuesday (January 27), and it quickly gained attention for the brief appearance of Armstrong, who "trash talks" to a skateboarder who injects himself with what appears to be steroids.

Armstrong was stripped of his seven Tour de France victories and banned for life from racing in 2012 by the US. Anti-Doping Agency after it accused him in a report of engineering one of the most sophisticated doping schemes in sport.

The athlete had long denied using performance-enhancing drugs and finally admitted in January 2013 to doping and faces several civil lawsuits that could drain the fortune he accumulated as one of the world's most popular and successful athletes.

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