See, Sienna Miller loves ASOS too!
It seems Sienna Miller shops online at ASOS.com like the rest of us too. She's worn this Mina Sienna Mini Dress from ASOS at least three times now; once on a red carpet and twice while she runs her every day errands around town. Perhaps she really loved the kitsch feel with the roll over neckline and the large pink button feature. Or it could be the children's painting print at the hemline? Either way, it goes to show stylish celebrities wear things more than once too.
Since it was snapped on Sienna, the mini dress sold out on ASOS.com. I wonder if they will restock it now since there seems to be such high demand for the dress. In the meantime check out some other cool tunic dresses Gemma's pick out from ASOS.com (that are still in stock).