Louis Tomlinson fans were forced to seek shelter from golf ball sized hailstones at his gig last night (21).<br /><br />The hailstorm hit the Red Rocks Park and Amphitheatre in Morrison, Colorado.<br /><br />A video shows hundreds of fans squashed into a shelter next to the amphitheatre where the former One Direction man was performing.<br /><br />The event was officially postponed.<br /><br />Eric Brinkman, 47, from Atlanta, Georgia, who captured the video, was visiting Denver and attending the concert for his daughter's 16th birthday.<br /><br />Eric, a self-employed graphic designer, said: "There were dark clouds and lightning - but no rain - all around for an hour before the hail started.<br /><br />"The first opening act made it on stage at 7pm, but the concert postponed the second opening act at 8pm and told everyone to go to their cars.<br /><br />"They later gave an all clear about one hour before the hail hit and Louis was scheduled to be on stage about 9pm.<br /><br />"It's no wonder that so many people were caught outside.<br /><br />"I saw the second storm approaching on my phone radar app, so my family was able to seek shelter before the chaos.<br /><br />"So many people got stuck without any options of shelter, and were just getting blasted by golf and tennis ball size hail.<br /><br />"It's terrifying to think of being helpless and running for cover when there was none."
