One of those songs is 'Persona', in which Charli sings about a friend with an 'ego' who likes the sound of their own voice and doesn't necessarily realise 'the way they come across'. So, here's what we know...Who is Persona by Charli xcx about? Of course, it didn't take long for Charli fans to assemble a Reddit thread to discuss who 'Persona' might be about. Either way, many fans have been quick to point out that the song is unlikely to be a diss track. What are the lyrics to Persona by Charli xcx?