It all comes down to what people consider a "star".
She's been a joke in the music industry for years now since all her attempts to launch a solo career failed miserably. All her singles flopped pretty badly in the US despite great promotion and any prospect of releasing an album were canceled by her label because of it. Even in the UK, where she managed to get an album out, her sales were mediocre at best, peaking at #08 and not even being able to go platinum despite having a couple of successful singles. I wouldn't call her a "star" at all.
Art washes away from the soul the dust of everyday life.