This has got to be Jessie J’s worst performance OF ALL TIME

Grab your earplugs and say goodbye to your families, kids, because this is the end of the world as we know it.

Jessie J’s been to the In studio… and let’s just say, she certainly left an impression.

Luckily for her, the original vocals have been overdubbed by a YouTube scamp – but it definitely had us roffling at Jessie’s excruciating execution of Bang Bang.

The singer even tweeted a link to the video herself, saying: “This MADE me cry with laughter! HAHAHAHAHAHAHA!”

Here’s one another Shredder did earlier to poor old One Direction…

Actual wheeze.