When Shawn smiles... we basically become INSTANTLY happy! This image appears in the gallery:Shawn Mendes's Best Instagram Pictures - 17 Photos Of Why We Love The 'Lost In Japan' Singer 16. When Shawn smiles... we basically become INSTANTLY happy! Picture: Instagram 16 images See the full gallery: Shawn Mendes's Best Instagram Pictures - 17 Photos Of Why We Love The 'Lost In Japan' Singer