Little Mix Performs "Love on the Brain" at iHeartRadio in 2017 Speaking of stripped-down performances that showcase the vocal talents of each woman, this cover for iHeartRadio is a perfect second example. With only a guitar accompanying them, this performance allows you to hear every note from the singers perfectly. Their harmonies were immaculate and it's amazing to hear them sing Rihanna's style that's so different from their own.