A fan at a Bryan Adams concert crashed the stage, grabbed the mic and started singing 'Summer Of ‘69', but the Groover from Vancouver was unfazed. RELATED: Concertgoers injure performers onstage with thrown objects https://youtu.be/rIQj0cZ6PVU » Subscribe to USA TODAY: http://bit.ly/1xa3XAh » Watch more on this and other topics from USA TODAY: https://bit.ly/3QYKjbc » USA TODAY delivers current local and national news, sports, entertainment, finance, technology, and more through award-winning journalism, photos, videos and VR. #BryanAdams #Concert #Music