We use the term 'pyjama-chic' loosely...
Jessie J and her new BFF Tom Jones headed out to 100 Club in London last night, for a performance on Radio 2's 2day programme, where they sang a duet of Mockingbird for 200 lucky fans (skip to the bottom of the page to watch the performance).
Along with Rihanna, Jessie J's already proved how much she loves the relaunch of 'it' punk label Boy London, and did them all kinds of favours when she covered herself in the brand neck-to-ankle last night.
After seeing Jessie J dolled up every week on The Voice, we're enjoying seeing her keeping it casual in a massive jumper and leggings like the rest of us dossers.
Although we don't usually slob about in massive platform shoes. But whatevs.
Jessie and Tom took to the stage to sing Mockingbird together, check it out here;