NWOT limited edition Rihanna for Emporio Armani slip/negligée

Do not think this was ever worn but it has been washed. Have had for years and it has been tucked away. Super silky/cool feeling, stretchy, adjustable straps. Lace detail has metallic color in it and center of bust has a tiny bow and metal emblem with a pendent type picture of Rihanna. Has an 11 08 on tag; wondering if it is from 2011 since that is when her campaign/collaboration for collection started. Cannot find online. In perfect condition.