SISTAR's Hyorin has dropped her third set of concept photos for her solo comeback.

She's dressed sexily in a zip-up, long-sleeved leotard with a furry hood she pulls over her face. Under it, she's wearing a crop top that reveals her tattoo, and finishes up the outfit with thigh-high black boots scribbled with words.

Looking hot!  Stay tuned for November 8.