'I wanted to bring some more positivity into the world via their song. The word is falling in love with them because they are so sweet and pure, and they're good-hearted,' she added. 'I'm a sucker for people who make positive music, and BTS does that. 'I'm singing it around the house anyway, why not sing it on the live lounge,' Lizzo told BBC Radio 1 presenter Charlie Hedges, ahead of her performance. Coincidentally, BTS impressed us with their own Live Lounge performance just a few months ago. Lizzo just took her admiration for BTS to a whole new level by covering the band's latest hit 'Butter' on BBC Radio 1's Live Lounge on Sept. LONDON, ENGLAND - FEBRUARY 18: (EDITORIAL USE ONLY) Lizzo performs during The BRIT Awards 2020 at The O2 Arena on Februin London, England.