Rebecca Lucy Taylor aka Self Esteem on her pivot from music to acting: ‘I felt a bit dead’

Her smash hit second album left the pop star also known as Self Esteem feeling the pressure to deliver an equally thrilling follow-up. Now, she’s playing a spiralling rock star in a major West End revival of David Hare's 1975 play ‘Teeth ’n’ Smiles’. She tells Jessie Thompson why the role feels so close to home