US pop princess Katy Perry said Thursday she was full of emotion as she visited Auschwitz, the infamous World War II-era Nazi German death camp in southern Poland that has come to symbolise the Holocaust.
"My heart was heavy today. For ever (sic) let this place be a cry of despair and a warning to humanity," Perry said in a post on her official Twitter account linked to a photo of the camp taken during her visit Wednesday and showing its barbed-wire fences and red brick buildings.
Fresh from her highly publicised US Super Bowl half-time show, the 30-year-old singer is currently on her marathon 12-month Prismatic World Tour ending in May.