Buzz·Posted on 12 Oct 2014This Swedish Subway Billboard About Child Cancer Is Extremely PowerfulNo one saw this twist coming.by Alan WhiteBuzzFeed News Reporter, UKFacebookPinterestTwitterMailLink Earlier this year a Swedish shampoo company made waves with this hi-tech subway advert. View this vine on Vine vine.co Now the Swedish Childhood Cancer Foundation (Barncancerfonden) has come up with a variation. View this vine on Vine vine.co It still evokes surprise from those who view it... View this vine on Vine vine.co ...But it has one hell of a powerful twist. View this vine on Vine vine.co And on top of everything Swedish ad agency Garbergs did it for the charity pro bono. It's now the most-viewed Swedish clip on YouTube. View this video on YouTube youtube.com