She's a chart-topping pop-star and has been a coach on The Voice - so some people are a bit confused as to why Jessie J is now a contestant in a talent show.
You may have seen a video of her taking part in a singing contest on Chinese TV that has been shared on social media over the past few days.
And yes she is. The show is called Singer, and to put it simply, already-famous stars sing other people’s songs, until they're all knocked out leaving one winner.
Jessie J sang I Have Nothing by Whitney Houston, and nailed it:
She told the studio audience that “Unfortunately I was in the same hotel when she passed".
"I want the Chinese audience and everyone else who is going to see it around the world to know, one how much I love Whitney Houston and two, to see how hard I push myself vocally.”