Lorde to Perform at Grammy Nominations Concert

The singer joins Macklemore & Ryan Lewis, Robin Thicke and Keith Urban for the special performance on Friday. Breakthrough singer Lorde will perform at the Grammy Awards nominations special Friday in Los Angeles. The 17-year-old joins Macklemore & Ryan Lewis for "The Grammy Nominations Concert Live!! -- Countdown to Music's Biggest Night," to be held at the Nokia Theatre L.A. Live. Her song, "Royals," has held the top spot on Billboard's Hot 100 chart for nine weeks, and could be crowned with Gr...