Mollie King is expecting a baby girl with her fiance Stuart Broad. The 35-year-old singer – who shot to stardom as part of The Saturdays – has taken to Instagram to post a behind-the-scenes video of her recent gender-reveal party. Mollie – who wore a figure-hugging powder blue dress for the party – captioned the video: “Last weekend we got our families together for a little celebration that we’ll never forget. “For months our families have been predicting and guessing the gender of the baby but it’s been so lovely to have that just between us. “Our due date is really creeping up now, we can’t …