The powerful, rich voice of internationally renowned tenor Joseph Calleja filled St George’s Square in Valletta yesterday as he gave a short performance that was filmed by Sky UK as part of a documentary about him. A large crowd gathered, responding to his invitation on social media, and listened enthralled as he sang five songs, with Granada, Le Vie En Rose and O Sole Mio being the most popular. The crowd then sang “Happy Birthday” to the Maltese tenor, who turns 37 today.