Jessie J seems to have developed the bum she always wanted as she showed off a rounder looking tush at the BRITS after party.

Last year the Price Tag singer revealed that she needs to put on more weight to get the derrière she’s always dreamed of

I need to eat more, most people say they need to eat less… I’m naturally very skinny but now I’m working so much the weight is dropping off… I need to stock up on carbs because a bum sells more records.

Very interesting theory, but now you’ve grown some meat you’re going to have to prove your theory right!