Chris Hemsworth surprised fans at an Ed Sheeran concert in Bucharest by playing the drums on stage in front of a 70,000-strong audience.  The appearance was part of Ed Sheeran's new season of his Disney+ National Geographic series, 'Limitless,' where Chris learned to play the drums for a documentary on cognitive health.  Despite feeling nervous, Chris received a participation award for his drumming excellence from Ed Sheeran.  This unexpected performance comes after a previous video of Chris and his brothers attempting to sing a Green Day song surfaced online. The unexpected collaboration between the "Thor" actor and the English singer at the concert thrilled the audience. What is your hidden talent?