Grammys 2015 kicked off on Sunday at 8pm EST, and the audience got a performance by Ariana Grande Check out Ariana Grande's Grammys 2015 kicked off performance! ACDC Kicked Off The Grammys 2015, The Audience Was Definitely Pumped Up! [VIDEO] Grande took the Grammys stage in a long purple dress, accessorized with silver earrings, natural makeup and a light pink mani.