Jessie J is the best singer of her generation – why didn't she become a superstar?

Jessie J is the best singer of her generation – why didn't she become a superstar?

If you’re under 25, I imagine you might only know of Jessie J from social media. Maybe you’ve seen the “nuh-nuh-nuh-nuh-nuh-no” clip, or the live footage of her singing an outlandish acoustic version of “Price Tag” on the BBC. The impression you might glean from her status as a meme is a brightly coloured, chaotic, high-camp queen. But if you’re older than that, you will remember a time when Jessie J and her brash mid-tempo pop songs were utterl…