Guy Sebastian surprises primary school children with unexpected performance during assembly
(WorldNews Entertainment)

He has entertained Australian audiences for more than 15 years. And on Wednesday, Guy Sebastian delighted a group of `super fans` as he paid a surprise visit to St Joan of Arc Catholic Primary School in Haberfield, Sydney. The 38-year-old singer heard the school choir had been learning his song, aptly titled Choir, and decided to pay them a special visit. Special visit! Singer Guy Sebastian (pictured) surprised the children of Sydney`s St Joan of Arc Catholic Primary...