The “Texas Hold ‘Em” singer shares the teen with husband Jay-Z.Beyonce and Blue Ivy Carter attend the 2026 Met Gala on May 4, 2026Credit: Getty ImagesThe GistBlue Ivy towered over her mom Beyoncé and her grandma Tina Knowles during a rare multi-generational appearance.The 14-year-old showed off her effortless cool-girl style in a jersey-style shirt and cutoff shorts.Beyoncé shares Blue Ivy as well as 9-year-old twins Rumi and Sir with husband Ja…