We wonder which songs they will sing?

Current 57th Grammy nominees The Band Perry, Ariana Grande, Lady Gaga, and John Legend have been added to the list of performers for “Stevie Wonder: Songs In The Key Of Life — An All-Star Grammy Salute.”  They join previously announced performers Janelle Monáe, Ed Sheeran, andUsher. The primetime special, presented by The Recording Academy, AEG Ehrlich Ventures, and CBS, will pay homage to Wonder’s iconic career with superstar performances celebrating his incomparable songbook. The live concert takes place at Nokia Theatre L.A. LIVE on Tuesday, Feb. 10. A 25-time GRAMMY winner, Wonder is the only artist to have received Album Of The Year honors for three out of four consecutive years with “Innervisions” (1973), “Fulfillingness’ First Finale” (1974) and “Songs In The Key Of Life” (1976). LL Cool J will host this very special tribute, which will air on CBS Feb. 16, 2015.