Preheat the oven to 350 degrees.
In a large mixing bowl, cream softened butter and sugar until smooth.
Add room temperature greek yogurt, lemon juice and zest. Mix until combined and scrape down the bowl.
Add room temperature eggs and mix again to combine.
Add vanilla, salt, poppy seeds and baking powder. Mix until combined.
Add the flour in 2-3 portions and mix until combined. Scrape down the bowl once complete.
In a separate bowl, grab a small handful of flour and toss it with the blueberries.
Fold the blueberries into the lemon poppy seed batter.
Spray the Bundt pan with a flour-based baking spray, then pour and spread the batter evenly throughout the pan.
Bake for 50-60 minutes or until a toothpick inserted into the center comes out clean. Spin your pan halfway through baking. Make your lemon simple syrup while the cake bakes.
Allow the cake to cool for 10-15 minutes, then remove it from the pan by turning it on to a cooling rack.
Once the cake has been removed from the pan, brush the entire top with the simple syrup.
Once the cake has cooled, drizzle the icing over the top of the cake and enjoy!