Struggling Marks & Spencer is again about to break the brand mould by putting the names of the top designers behind its upmarket range on to its clothing labels. The move is a radical departure for the store which has only previously sold products under the M&S or St Michael brand name. The store has revealed it is to the put the names of top designers such as Julien Macdonald and Katharine Hamnett to the designs in the store's Autograph collection.