Source: Brianna Bryson / Getty Keke Palmer and Lizzo together on the I Love Boosters red carpet is the kind of carrying on we love to see. Not only did the two it girls shut it down in spring-ready looks, but they also gave us a dose of sisterhood and style that made us smile. The two stars were photographed together at the Los Angeles premiere on May 13 at the DGA Theater Complex. And the pictures stopped us mid-scroll. Between the bright color…