A fresh white frock, black leather jacket and nude courts (the Middleton style staple) made for a simple but chic ensemble - which was mirrored by her scarlet lady friend. Ahh.
Are you a fan of Chelsy's laid back London style? Let us know in a comment below.
Chelsy's not the only famous face to rock a white frock, see the other stars feeling bridal here:
Steal Ms Davy's London look: