The teenage Grammy award winning singer Billie Eilish took it back to the 80's with an awesome cover of Michael Jackson's hit 'Bad.' She wasn't even born when this song came out but it still hold a special place in her heart. “This song is really genius and I feel like it’s so different… it’s got such a hooky melody and then the pre-chorus is completely different and you’re like, ‘What is this?’ and then suddenly it’s just like bad ass sexy as chorus. So yeah, I love it,” she said. Check out the 'good' cover below.