I came across this performance of Whitney Houston's 'I Have Nothing' this evening by Jessie J and was 'blown away'. I had absolutely no idea that Jessie J could sing like this. Reading the video comments, it would seem that almost everyone was impressed so thought it ought to be shared. I've no idea what the show is, I would guess an Asian TV show which looks like a talent contest which is confusing as she has been an established artist since at least 2011 with her hit 'Price Tag' and has released 5 albums since.
Having looked into it further, it's a Chinese singing contest 'Satine' ('Singer') on Hunan TV which invites professional singers. Jessie J actually won the competition in 2018.
I was in the process of posting each performance individually but I found a video which shows all her performances:
00:00 Domino
04:58 I Have Nothing
10:24 Killing Me Softly With His Song
16:03 Flashlight＋Earth song
21:42 Ain't Nobody
27:21 Purple Rain
33:47 Never Too Much
39:24 My Heart Will Go On
44:48 Ain't No Mountain High Enough
48:41 Reflection
53:17 Bang Bang（COCO LI、KZ）
58:47 I Will Always Love You
63:57 I’ll Be There（Luke James）
