Preheat the oven to 190°C. Grease an loaf pan and line with baking paper.
In a bowl, whisk together the Yoplait Greek Style Blueberry yoghurt, sugar, eggs, lemon zest, vanilla extract and melted butter
Combine the flour and baking powder and toss through the blueberries so they are coated in flour.
Add the wet ingredients to the dry ingredients and stir until just combined. Pour the batter into the prepared loaf pan and bake for 55 minutes or until a skewer inserted in the centre comes out clean. Cool completely before glazing.
Make the lemon glaze by stirring together the icing sugar, lemon juice and just enough milk to make a spreadable consistency.