Beyoncé paid a sweet tribute to Meghan Markle on her milestone 40th birthday on Wednesday.The American superstar pulled out all the stops online to wish Meghan a happy birthday as she shared a sweet childhood picture of her on her personal website. In the snap posted by the 39 year old songstress, former Suits star Meghan looked adorable in a blue dress and pretty floral headband as she smiled for the camera.