 In 2018, she designed Christmas themed jumpers with Hopefield Animal Sanctuary, with all net profits going towards the charity.Moreover, she supports (RED)'s Global Fund to end AIDS, and in association with the app Calm contributed narration of a sleep story, thus providing 100,000 people with life-saving HIV medication.Lewis, initially contracted to serve as a guest judge, became a permanent judge on "" in December 2019, joining during the Audience auditions.