No, this isn't the Tesco Christmas party - the retailer's staff are far too busy at this time of year to be dancing in the aisles.
It's the unveiling of Tesco's new uniform, which will be rolled out across the country in the new year. The blue checked shirts are on their way out, to be replaced by a sportier look, which has received the thumbs-up from staff trialling the new outfits in three stores.
Feedback from the stores in Liverpool, Bromborough and Romford included comments that the new uniform was more modern and much more comfortable as it was made from better fabric.
The new line includes fleeces, fleece waistcoats, formal jackets, blouses, shirts, casual tops, polo shirts, formal and casual trousers and skirts, which can all be mix and matched.