JAY-Z is one proud papa. Many minds were lost when Rihanna and Blue Ivy Carter crossed paths backstage at the 2015 Grammy Awards, and now, years later, they’ve linked up once again, although JAY-Z and Beyoncé’s daughter is looking much more grown-up this time around. As InStyle reports, RiRi was wearing a gorgeous pink Giambattista Valli gown during her first meeting with Blue …