Billie Eilish
The Bad Guy singer decided to stop signing autographs in 2019 as she felt discomfort at the attention from over-eager autograph hunters.
The 24-year-old artist explained: "It's something that I don't do because I used to, but I realised all anyone did was sell everything that I signed, so I stopped doing that.
"It was kind of like a policy of mine that I don't."